Path traversal in BIG-IP iControl REST and tmsh

1) Path traversal

EUVDB-ID: #VU62824

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-26835

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error in iControl REST and tmsh command when processing directory traversal sequences in BIG-IP systems deployed in Standard and Appliance mode. An attacker with at least resource administrator role privileges can send a specially crafted HTTP request to the iControl REST API or pass specially crafted arguments to the tmsh command and view contents of arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 HF1 - 16.1.2.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:11.6.5.3:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:12.1.6:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:13.1.4.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4.5:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:15.1.5:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:16.1.2.1:*:*:*:*:*:*:*

External links

http://support.f5.com/csp/article/K53197140

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.