Improper Privilege Management Affecting sudo package, versions <1.8.31-1ubuntu1.4


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-UBUNTU2004-SUDO-3234992
  • published19 Jan 2023
  • disclosed18 Jan 2023

Introduced: 18 Jan 2023

CVE-2023-22809  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 sudo to version 1.8.31-1ubuntu1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1