Every CVE Search/ Get API key

CVE-2019-19232

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a...

7.5 HighFix availableDisputed

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

3.29%Down 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
CVE-2019-19232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Updated
2026-11-02
CVE List No score

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
CVE-2019-19232
Updated
2026-11-02
EUVDEUVD-2019-8858 No score

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
EUVD-2019-8858
Updated
2026-11-03
GitHub AdvisoriesGHSA-g292-5fg6-fchh 7.5

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a...

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user.

Record
GHSA-g292-5fg6-fchh
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVBELL-CVE-2019-19232 7.5

CVE-2019-19232 does not affect BellSoft software

Record
BELL-CVE-2019-19232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSV 7.5

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
CVE-2019-19232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2019-19232 7.5

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
DEBIAN-CVE-2019-19232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVRHSA-2020:1804 7.5

Red Hat Security Advisory: sudo security, bug fix, and enhancement update

Record
RHSA-2020:1804
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2019-19232 7.5

In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions

Record
UBUNTU-CVE-2019-19232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVMGASA-2020-0246 No score

Updated sudo packages fix security vulnerability

Updated sudo packages fix security vulnerabilities:

It was found that sudo always allowed commands to be run with unknown user or group ids if the sudo configuration allowed it for example via the "ALL" alias. This could allow sudo to impersonate non-existent account and depending on how applications are configured, could lead to certain restriction bypass. This is now explicitly disabled. A new setting called "allow_unknown_runas_id" was introduced in order to enable this (CVE-2019-19232).

When an account is disabled via the shadow file, by replacing the password hash with "!", it is not considered disabled by sudo. And depending on the configuration, sudo can be run by using such disabled account (CVE-2019-19234).

The sudo package has been updated to version 1.8.31p1, fixing these issues and other bugs.

Record
MGASA-2020-0246
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
sudo
Debian:12
 before 1.8.31-1
1.8.31-1
sudo
Debian:13
 before 1.8.31-1
1.8.31-1
sudo
Debian:14
 before 1.8.31-1
1.8.31-1
sudo
Mageia:7
From an advisory covering 3 CVEs
 before 1.8.31p1-1.1.mga7
1.8.31p1-1.1.mga7
sudo
Red Hat:enterprise_linux:8::baseos
From an advisory covering 2 CVEs
 before 0:1.8.29-5.el8
0:1.8.29-5.el8
sudo-debuginfo
Red Hat:enterprise_linux:8::baseos
From an advisory covering 2 CVEs
 before 0:1.8.29-5.el8
0:1.8.29-5.el8
sudo-debugsource
Red Hat:enterprise_linux:8::baseos
From an advisory covering 2 CVEs
 before 0:1.8.29-5.el8
0:1.8.29-5.el8
sudo
Ubuntu:20.04:LTS
 before 1.8.31-1ubuntu1, plus listed versions
1.8.27-1ubuntu41.8.29-1ubuntu1
1.8.31-1ubuntu1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-19232 is a high vulnerability (CVSS 7.5) in Sudo, published December 19, 2019. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 3.29%, the 88th percentile. Fixed in sudo 1.8.31-1.

References

Show 38 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open