Improper Access Control Affecting sudo package, versions <0:1.8.29-5.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.46% (87th percentile)

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  • Snyk IDSNYK-RHEL8-SUDO-3764510
  • published26 Jul 2021
  • disclosed19 Dec 2019

Introduced: 19 Dec 2019

CVE-2019-19232  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade RHEL:8 sudo to version 0:1.8.29-5.el8 or higher.
This issue was patched in RHSA-2020:1804.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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

References

CVSS Scores

version 3.1