F5 BIG-IP on VIPRION Log /var/log/ltm Password log file

Summaryinfo

A vulnerability was found in F5 BIG-IP on VIPRION. It has been rated as problematic. Impacted is an unknown function of the file /var/log/ltm of the component Log Handler. The manipulation as part of Password leads to log file. This vulnerability is documented as CVE-2017-6165. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in F5 BIG-IP on VIPRION (Firewall Software) (version unknown) and classified as problematic. This issue affects an unknown function of the file /var/log/ltm of the component Log Handler. The manipulation as part of a Password leads to a log file vulnerability. Using CWE to declare the problem leads to CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. Impacted is confidentiality. The summary by CVE is:

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM, and WebSafe 11.5.1 HF6 through 11.5.4 HF4, 11.6.0 through 11.6.1 HF1, and 12.0.0 through 12.1.2 on VIPRION platforms only, the script which synchronizes SafeNet External Network HSM configuration elements between blades in a clustered deployment will log the HSM partition password in cleartext to the "/var/log/ltm" log file.

The bug was discovered 10/20/2017. The weakness was released 10/20/2017 as 580026 / K74759095 (Website). It is possible to read the advisory at support.f5.com. The identification of this vulnerability is CVE-2017-6165 since 02/21/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 103995 (F5 Networks BIG-IP : SafeNet External Network HSM script vulnerability (K74759095)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370621 (F5 BIG-IP SafeNet External Network HSM Script Vulnerability (K74759095)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103995) and SecurityFocus (BID 101543†). Entries connected to this vulnerability are available at VDB-108310 and VDB-108308. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion