Secure Computing SnapGear Management Console SG560 3.1.5 Arbitrary File Read/Write

Advisories

severity: high
date: January 5, 2026
Affecting: SnapGear Management Console SG560 3.1.5u1
CVE: CVE-2020-36909
CWE: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-48556
Zero Science Lab Disclosure (ZSL-2020-5568)
Packet Storm Security Exploit Entry
IBM X-Force Vulnerability Exchange
Credit: LiquidWorm as Gjoko Krstic of Zero Science Lab
Description: SnapGear Management Console SG560 3.1.5 contains a file manipulation vulnerability that allows authenticated users to read, write, and delete files using the edit_config_files CGI script. Attackers can manipulate POST request parameters in /cgi-bin/cgix/edit_config_files to access and modify files outside the intended /etc/config/ directory.