#VU77799 Path traversal in ThinManager - CVE-2023-27856

Vulnerability identifier: #VU77799

Vulnerability risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2023-27856

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
ThinManager
Server applications / Other server solutions

Vendor: Rockwell Automation

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 in the file_name field. A remote attacker can send a specially crafted HTTP request and upload arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ThinManager: 6.0 - 13.0.1

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External links
https://www.tenable.com/security/research/tra-2023-13

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.