Amazon Linux 2023: CVE-2023-22809: Important priority package update for sudo

Amazon Linux 2023: CVE-2023-22809: Important priority package update for sudo

Severity

7

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

01/18/2023

Created

02/14/2025

Added

02/14/2025

Modified

02/14/2025

Description

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value. A vulnerability was found in sudo. Exposure in how sudoedit handles user-provided environment variables leads to arbitrary file writing with privileges of the RunAs user (usually root). The prerequisite for exploitation is that the current user must be authorized by the sudoers policy to edit a file using sudoedit.

Solution(s)

• amazon-linux-2023-upgrade-sudo
• amazon-linux-2023-upgrade-sudo-debuginfo
• amazon-linux-2023-upgrade-sudo-debugsource
• amazon-linux-2023-upgrade-sudo-devel
• amazon-linux-2023-upgrade-sudo-logsrvd
• amazon-linux-2023-upgrade-sudo-logsrvd-debuginfo
• amazon-linux-2023-upgrade-sudo-python-plugin
• amazon-linux-2023-upgrade-sudo-python-plugin-debuginfo

References

• https://attackerkb.com/topics/cve-2023-22809
• CVE - 2023-22809
• https://alas.aws.amazon.com/AL2023/ALAS-2023-106.html