#VU27466 Information disclosure in BIG-IP and BIG-IP APM

Vulnerability identifier: #VU27466

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP
Hardware solutions / Firmware
BIG-IP APM
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the BIG-IP APM system may log random data after the APM session ID in the "/var/log/apm" logs. A remote attacker can use the "ACCESS::log" command in an iRule associated with the BIG-IP APM virtual server and cause the characters logged after the APM session ID may leak random information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.0.0 - 14.0.1, 14.1.0 - 14.1.2, 15.0.0 - 15.0.1

BIG-IP APM: 14.0.0 - 15.0.1

---

External links
https://support.f5.com/csp/article/K43404365

---

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?

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