#VU49693 Path traversal in TOS - CVE-2020-28187
Published: December 24, 2020 / Updated: January 19, 2021
Vulnerability identifier: #VU49693
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-28187
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
TOS
TOS
Software vendor:
TerraMaster
TerraMaster
Description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within several parameters. A remote authenticated attacker can send a specially crafted HTTP request and read, edit or delete any file within the filesystem.
This vulnerability affects the following parameters:
- "filename" in /tos/index.php?editor/fileGet
- "Event" in /include/ajax/logtable.php,
- "opt" in /include/core/index.php
Remediation
Install updates from vendor's website.