SUDO MAIN PAGESTABLESUDO 1.9.3P1LEGACYSUDO 1.8.31P2DOWNLOAD PAGESUDO

VERSION 1.9.3

Sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments. For more information, see the introduction to Sudo . Sudo is free software, distributed under an ISC

DOWNLOAD SUDO

Download Sudo. Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key . Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD

D35B

SUDO MANUALSEE MORE ON SUDO.WS

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO LOG SERVER PROTOCOL MANUAL An AlertMessage is sent by the client to indicate a problem detected by the security policy while the command is running that should be stored in the event log. It contains the following members: alert_time The wall clock time when the alert occurred. reason The reason for the alert. info_msgs An optional array of InfoMessage describing the user who submitted the command as well as the BUFFER OVERFLOW WHEN PWFEEDBACK IS SET IN SUDOERS While pwfeedback is not enabled by default in the upstream version of sudo, some systems, such as Linux Mint and Elementary OS, do enable it in their default sudoers files. Due to a bug, when the pwfeedback option is enabled in the sudoers file, a user may be able to trigger a stack-based buffer overflow. This bug can be triggered even by users SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDO MAIN PAGESTABLESUDO 1.9.3P1LEGACYSUDO 1.8.31P2DOWNLOAD PAGESUDO

VERSION 1.9.3

Sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments. For more information, see the introduction to Sudo . Sudo is free software, distributed under an ISC

DOWNLOAD SUDO

Download Sudo. Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key . Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD

D35B

SUDO MANUALSEE MORE ON SUDO.WS

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO LOG SERVER PROTOCOL MANUAL An AlertMessage is sent by the client to indicate a problem detected by the security policy while the command is running that should be stored in the event log. It contains the following members: alert_time The wall clock time when the alert occurred. reason The reason for the alert. info_msgs An optional array of InfoMessage describing the user who submitted the command as well as the BUFFER OVERFLOW WHEN PWFEEDBACK IS SET IN SUDOERS While pwfeedback is not enabled by default in the upstream version of sudo, some systems, such as Linux Mint and Elementary OS, do enable it in their default sudoers files. Due to a bug, when the pwfeedback option is enabled in the sudoers file, a user may be able to trigger a stack-based buffer overflow. This bug can be triggered even by users SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available.

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDOERS MANUAL

sudoers manual page. NAME. sudoers - default sudo security policy module. DESCRIPTION. The sudoers policy module determines a user's sudo privileges. It is the default sudo policy plugin. The policy is driven by the /etc/sudoers file or, optionally in LDAP. The policy format is described in detail in the "SUDOERS FILE FORMAT" section. For information on storing sudoers policy information in

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. SUDO PYTHON PLUGIN API The Python plugin API includes two convenience functions to convert options in “key=value” format to a dictionary and vice versa. options_as_dict. options_as_dict (options) The function arguments are as follows: options. An iterable (tuple, list, etc.) of strings, each in “key=value” format. SUDO LOG CLIENT MANUAL DESCRIPTION. sudo_sendlog can be used to send the existing sudoers I/O log path to a remote log server such as sudo_logsrvd(8) for central storage.. The options are as follows:-A, --accept-only Only send the accept event, not the I/O associated with the log. This can be used to test the logging of accept events without any associated I/O.

SUDO README FILE

Sudo README File. The sudo philosophy =================== Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity. The basic philosophy is to give as few privileges as possible but still allow people to get their work done. SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

TODD C. MILLER'S HOME PAGE Todd C. Miller's Home Page. Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software , improving sudo and working on the One Identity platform. In my spare time I still work on OpenBSD and continue to develop sudo, among other things.

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUALSEE MORE ON SUDO.WS SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO 1.9 Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

SUDO ON FREEBSD • SUDO BLOG To compile sudo, change to the /usr/ports/security/sudo/ directory. As a first step, choose which features to enable: make config. This shows a menu, where on first run, you can see the default settings used to compile the sudo package. When you use pre-compiled binaries provided by the FreeBSD project, they use these settings. USING CHROOT AND CWD IN SUDO • SUDO BLOGSEE MORE ON BLOG.SUDO.WS TODD C. MILLER'S HOME PAGE Todd C. Miller's Home Page. Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software , improving sudo and working on the One Identity platform. In my spare time I still work on OpenBSD and continue to develop sudo, among other things. SETTING UP PPPD ON A TIVO RUNNING 1.3 OR 2.X I assume you've read the TiVo Hack FAQ and you have either shell access to your TiVo or you have its disk connected to a PC booted with one the boot disks for TiVo hackery. Much of this info was gleaned from other people's posts on the AVS TiVo Underground Forum without which this wouldn't be possible. Thanks! I did things a little bit differently than the other methods I've see

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUALSEE MORE ON SUDO.WS SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO 1.9 Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

SUDO ON FREEBSD • SUDO BLOG To compile sudo, change to the /usr/ports/security/sudo/ directory. As a first step, choose which features to enable: make config. This shows a menu, where on first run, you can see the default settings used to compile the sudo package. When you use pre-compiled binaries provided by the FreeBSD project, they use these settings. USING CHROOT AND CWD IN SUDO • SUDO BLOGSEE MORE ON BLOG.SUDO.WS TODD C. MILLER'S HOME PAGE Todd C. Miller's Home Page. Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software , improving sudo and working on the One Identity platform. In my spare time I still work on OpenBSD and continue to develop sudo, among other things. SETTING UP PPPD ON A TIVO RUNNING 1.3 OR 2.X I assume you've read the TiVo Hack FAQ and you have either shell access to your TiVo or you have its disk connected to a PC booted with one the boot disks for TiVo hackery. Much of this info was gleaned from other people's posts on the AVS TiVo Underground Forum without which this wouldn't be possible. Thanks! I did things a little bit differently than the other methods I've see

DOWNLOAD SUDO

Download Sudo. Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key . Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD

D35B

SUDO MANUAL

Normally, sudo runs a command with the primary group set to the one specified by the password database for the user the command is being run as (by default, root). The -g ( group) option causes sudo to run the command with the primary group set to group instead. To specify a

SUDOERS MANUAL

sudoers manual page. NAME. sudoers - default sudo security policy module. DESCRIPTION. The sudoers policy module determines a user's sudo privileges. It is the default sudo policy plugin. The policy is driven by the /etc/sudoers file or, optionally in LDAP. The policy format is described in detail in the "SUDOERS FILE FORMAT" section. For information on storing sudoers policy information in

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available.

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

SUDO 1.9.4: NEW OPTIONS FOR LOGGING • SUDO BLOG Logging to sudo_logsrvd. Even before version 1.9.4, there were already two ways for sudo to log events: logging to syslog and logging through the audit plugin API. Starting with sudo version 1.9.4 there is a third one: logging to sudo_logsrvd, the service that collects session recordings centrally (which in the end can also log to syslog). SETTING UP PPPD ON A TIVO RUNNING 1.3 OR 2.X I assume you've read the TiVo Hack FAQ and you have either shell access to your TiVo or you have its disk connected to a PC booted with one the boot disks for TiVo hackery. Much of this info was gleaned from other people's posts on the AVS TiVo Underground Forum without which this wouldn't be possible. Thanks! I did things a little bit differently than the other methods I've see SUDO MAIN PAGESTABLESUDO 1.9.3P1LEGACYSUDO 1.8.31P2DOWNLOAD PAGESUDO

VERSION 1.9.3

What is Sudo? Sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.

DOWNLOAD SUDO

Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key.Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD D35B A9F4 C021 CEA4 70FB and the old pgp signing key with the fingerprint

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUAL

DESCRIPTION. sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The invoking user's real (not effective) user ID is used to determine the user name with which to query the security policy.sudo supports a plugin architecture for security policies and input/output logging. SUDO MANUALSEE MORE ON SUDO.WS

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

BUFFER OVERFLOW WHEN PWFEEDBACK IS SET IN SUDOERS Release Date: January 30, 2020 (updated February 5, 2020 with additional exploitation details) Summary: Sudo's pwfeedback option can be used to provide visual feedback when the user is inputting their password. For each key press, an asterisk is printed. SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDO.CONF(5) FILE FORMATS MANUAL SUDO.CONF(5) THE group database directly to determine the group list. This makes it possible for the security policy to perform matching by group name even when the user is a member of more than the SUDO MAIN PAGESTABLESUDO 1.9.3P1LEGACYSUDO 1.8.31P2DOWNLOAD PAGESUDO

VERSION 1.9.3

What is Sudo? Sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments.

DOWNLOAD SUDO

Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key.Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD D35B A9F4 C021 CEA4 70FB and the old pgp signing key with the fingerprint

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUAL

DESCRIPTION. sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The invoking user's real (not effective) user ID is used to determine the user name with which to query the security policy.sudo supports a plugin architecture for security policies and input/output logging. SUDO MANUALSEE MORE ON SUDO.WS

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

BUFFER OVERFLOW WHEN PWFEEDBACK IS SET IN SUDOERS Release Date: January 30, 2020 (updated February 5, 2020 with additional exploitation details) Summary: Sudo's pwfeedback option can be used to provide visual feedback when the user is inputting their password. For each key press, an asterisk is printed. SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDO.CONF(5) FILE FORMATS MANUAL SUDO.CONF(5) THE group database directly to determine the group list. This makes it possible for the security policy to perform matching by group name even when the user is a member of more than the

DOWNLOAD SUDO

Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key.Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD D35B A9F4 C021 CEA4 70FB and the old pgp signing key with the fingerprint

SUDO IN A NUTSHELL

To get a good idea of what sudo can do, you really need to take a look at a sample sudoers file. The sudoers manual explains the syntax in detail.. There is also a nice slide show on how to use sudo in a large, heterogeneous environment by Alek Komarnitsky.

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available.

SUDOERS MANUAL

sudoers manual page. NAME. sudoers - default sudo security policy module. DESCRIPTION. The sudoers policy module determines a user's sudo privileges. It is the default sudo policy plugin. The policy is driven by the /etc/sudoers file or, optionally in LDAP. The policy format is described in detail in the "SUDOERS FILE FORMAT" section. For information on storing sudoers policy information in

SUDO MANUAL

DESCRIPTION. sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The invoking user's real (not effective) user ID is used to determine the user name with which to query the security policy.sudo supports a plugin architecture for security policies and input/output logging. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO.CONF(5) FILE FORMATS MANUAL SUDO.CONF(5) THE group database directly to determine the group list. This makes it possible for the security policy to perform matching by group name even when the user is a member of more than the TODD C. MILLER'S HOME PAGE Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software, improving sudo and working on the One Identity platform.. In my spare time I still work on OpenBSD and continue to develop sudo, among other things.

USER GUIDE - SUDO

EchoLife HG612 FTTC VDSL NTE User Guide HUAWEI TECHNOLOGIES CO., LTD.

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUALSEE MORE ON SUDO.WS

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. USING CHROOT AND CWD IN SUDO • SUDO BLOGSEE MORE ON BLOG.SUDO.WS ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO 1.9 Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

TODD C. MILLER'S HOME PAGE Todd C. Miller's Home Page. Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software , improving sudo and working on the One Identity platform. In my spare time I still work on OpenBSD and continue to develop sudo, among other things.

SUDOERS MANUAL

sudoers manual page. Without the “=()*” suffix, this would not match, as old-style bash shell functions are not preserved by default. The complete list of environment variables that sudo allows or denies is contained in the output of “sudo -V” when run as root.Please note that this list varies based on the operating system sudo is

running on.

SUDO MANUALSEE MORE ON SUDO.WS

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available. SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin. USING CHROOT AND CWD IN SUDO • SUDO BLOGSEE MORE ON BLOG.SUDO.WS ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO 1.9 Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

TODD C. MILLER'S HOME PAGE Todd C. Miller's Home Page. Note: this page tends be neglected and is only updated occasionally. The links to the left are where the useful bits are hiding. I currently work for Quest Software , improving sudo and working on the One Identity platform. In my spare time I still work on OpenBSD and continue to develop sudo, among other things.

DOWNLOAD SUDO

Download Sudo. Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page. All source distributions and binary packages are signed by my PGP key . Two keys are included in the file, the current pgp signing key with the fingerprint 59D1 E9CC BA2B 3767 04FD

D35B

SUDO SOURCE REPO

sudo source repository access. Read-only access to the sudo source repository (from as far back as 1993) is available for checkout using mercurial or git.Anonymous CVS access is no longer available. SUDO CONFIGURATION MANUAL The sudo.conf file is used to configure the sudo front end. It specifies the security policy and I/O logging plugins, debug flags as well as plugin-agnostic path names and settings. The sudo.conf file supports the following directives, described in detail below. Plugin.

SUDO LICENSE

Sudo is distributed under the following license: Copyright (c) 1994-1996, 1998-2021 Todd C. Miller Permission to use, copy, modify,

and

SUDO MANUAL

sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging plugins to work seamlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. ALERTING TO MANY DIFFERENT SERVICES USING PYTHON AND SUDO 1.9 Alerting to many different services using Python and sudo 1.9. Before version 1.9 was released, alterting in sudo was limited to e-mail messages. If you wanted to send alerts somewhere else, like Slack, you could only do this using external applications, like syslog-ng. Beginning with sudo 1.9, there is an Audit API that can be called from

Python.

SUDOERS TIME STAMP MANUAL NAME. sudoers_timestamp — Sudoers Time Stamp Format. DESCRIPTION. The sudoers plugin uses per-user time stamp files for credential caching. Once a user has been authenticated, they may use sudo without a password for a short period of time (5 minutes unless overridden by the timestamp_timeout option). By default, sudoers uses a separate record for each terminal, which means that a user's SUDOERS(5) FILE FORMATS MANUAL SUDOERS(5) sudoers can log both successful and unsuccessful attempts (as well as errors) to syslog(3), a log file, or both. By default, sudoers will log via syslog(3) but this is changeable via the syslog and logfile

Defaults

SUDO 1.9.4: NEW OPTIONS FOR LOGGING • SUDO BLOG Logging to sudo_logsrvd. Even before version 1.9.4, there were already two ways for sudo to log events: logging to syslog and logging through the audit plugin API. Starting with sudo version 1.9.4 there is a third one: logging to sudo_logsrvd, the service that collects session recordings centrally (which in the end can also log to syslog).

SUDOREPLAY MANUAL

sudoreplay manual page. DESCRIPTION. sudoreplay plays back or lists the output logs created by sudo.When replaying, sudoreplay can play the session back in real-time, or the playback speed may be adjusted (faster or slower) based on the command line options. The ID should either be a six character sequence of digits and upper case letters, e.g. 0100A5, or a pattern matching the iolog_file

SUDO MAIN PAGE

WHAT IS SUDO?

Sudo (su "do") allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments. For more information, see the introduction to Sudo . Sudo is _free software_, distributed under an ISC-style license .

RELEASES

The current stable release is sudo 1.9.7 , released on May 12, 2021. The current legacy release is sudo 1.8.32 , released on February 9, 2021. See the download page for a list of binary packages

.

The current development release is sudo 1.9.7rc2 , released on May 10, 2021.

NEWS

__ Sudo version 1.9.7 released. Major changes in sudo 1.9.7 . __ Sudo version 1.9.7rc2 released. Major changes in sudo 1.9.7rc2 . __ Sudo version 1.9.6p1 released. Major changes in sudo 1.9.6p1 . __ Sudo version 1.9.6 released. Major changes in sudo 1.9.6 . __ Sudo version 1.8.32 released. Major changes in sudo 1.8.32 . This version fixes CVE-2021-3156

(also

known as _Baron Samedit_) which could allow an attacker to obtain root privileges even if they are not listed in the sudoers file. __ Sudo version 1.9.5p2 released. Major changes in sudo 1.9.5p2 . This version fixes CVE-2021-3156

(also

known as _Baron Samedit_) which could allow an attacker to obtain root privileges even if they are not listed in the sudoers file. __ Sudo version 1.9.5p1 released. Major changes in sudo 1.9.5p1 . __ Sudo version 1.9.5 released. Major changes in sudo 1.9.5 . This version fixes a potential security issue in sudoedit when sudo is built with SELinux support such that a user may be able to set the owner of an arbitrary file to that of the target user (e.g.

root).

__ Sudo version 1.9.4p2 released. Major changes in sudo 1.9.4p2 . __ Sudo version 1.9.4p1 released. Major changes in sudo 1.9.4p1 . __ Sudo version 1.9.4 released. Major changes in sudo 1.9.4 . __ 5 new sudo features you need to know in 2020 , an article by Peter Czanik at opensource.com , highlights the new features in sudo 1.9. __ Sudo version 1.9.3p1 released. Major changes in sudo 1.9.3p1 . __ Sudo version 1.9.3 released. Major changes in sudo 1.9.3 . __ Sudo version 1.9.2 released. Major changes in sudo 1.9.2 . __ Sudo version 1.9.1 released. Major changes in sudo 1.9.1 . __ Sudo version 1.8.31p2 released. Major changes in sudo 1.8.31p2 . __ Sudo version 1.9.0 released. Major changes in sudo 1.9.0 . __ Sudo version 1.8.31p1 released. Major changes in sudo 1.8.31p1 . __ Sudo 1.9 presentation at SCaLE 18x

. The slides

and video

from the presentation

are available.

__ Sudo version 1.8.31 released. Major changes in sudo 1.8.31 . This version fixes a potential security issue that can lead to a buffer overflow if the _pwfeedback_ option is

enabled in sudoers.

__ Sudo version 1.8.30 released. Major changes in sudo 1.8.30 . __ Sudo version 1.8.29 released. Major changes in sudo 1.8.29 . __ Sudo version 1.8.28p1 released. Major changes in sudo 1.8.28p1 . __ Sudo version 1.8.28 released. Major changes in sudo 1.8.28 . This version fixes a potential security issue where a sudo user may be able to run a command as root when the Runas specification explicitly disallows root access. __ There is a new Sudo Blog . You can expects articles about some of sudo's new and less well-known features, upcoming sudo talks and more. __ The second edition of Sudo Mastery

by Michael W. Lucas

is now available.

__ Sudo version 1.8.27 released. Major changes in sudo 1.8.27 . __ Sudo version 1.8.26 released. Major changes in sudo 1.8.26 . __ Sudo version 1.8.25p1 released. Major changes in sudo 1.8.25p1 . __ Sudo version 1.8.25 released. Major changes in sudo 1.8.25 . __ Sudo version 1.8.24 released. Major changes in sudo 1.8.24 . __ Sudo version 1.8.23 released. Major changes in sudo 1.8.23 . __ Sudo version 1.8.22 released. Major changes in sudo 1.8.22 . __ Sudo version 1.8.21p2 released. Major changes in sudo 1.8.21p2 . __ Sudo version 1.8.21p1 released. Major changes in sudo 1.8.21p1 . __ Sudo version 1.8.21 released. Major changes in sudo 1.8.21 . __ Sudo version 1.8.20p2 released. Major changes in sudo 1.8.20p2 . __ Sudo version 1.8.20p1 released. Major changes in sudo 1.8.20p1 . This version fixes a potential security issue that may allow a user to overwrite an arbitrary file on Linux systems. __ Sudo version 1.8.20 released. Major changes in sudo 1.8.20 .

MORE NEWS...

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