Synology Security Advisory 23:02 Sudo

Synology, Inc. had published a security advisory concerning a vulnerability in DiskStation Manager (DSM) NAS OS and Synology Router Manager (SRM).

Publish time: 2023-03-30 16:17:07 UTC+8
Last updated: 2023-10-04 18:16:36 UTC+8
Severity: Low
Status: Accepted

Abstract
A vulnerability allows local users to conduct privilege escalation attacks via a susceptible version of DSM and SRM.

Affected products

Mitigation : None

Detail

• CVE-2023-22809

  • Severity: Low

  • CVSS3 Base Score: 6.7

  • CVSS3 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

  • 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.

Reference

CVE-2023-22809

Revision