F5 BIG-IP PEM 12.1.0/12.1.1/12.1.2 Type Allocation Code Database certificate validation

Summaryinfo

A vulnerability was found in F5 BIG-IP PEM 12.1.0/12.1.1/12.1.2. It has been classified as critical. This vulnerability affects unknown code of the component Type Allocation Code Database Handler. Performing a manipulation results in certificate validation. This vulnerability is cataloged as CVE-2017-6144. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in F5 BIG-IP PEM 12.1.0/12.1.1/12.1.2 (Firewall Software). This affects an unknown code block of the component Type Allocation Code Database Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In F5 BIG-IP PEM 12.1.0 through 12.1.2 when downloading the Type Allocation Code (TAC) database file via HTTPS, the server's certificate is not verified. Attackers in a privileged network position may be able to launch a man-in-the-middle attack against these connections. TAC databases are used in BIG-IP PEM for Device Type and OS (DTOS) and Tethering detection. Customers not using BIG-IP PEM, not configuring downloads of TAC database files, or not using HTTP for that download are not affected.

The bug was discovered 08/18/2017. The weakness was shared 10/20/2017 (Website). The advisory is shared at support.f5.com. This vulnerability is uniquely identified as CVE-2017-6144 since 02/21/2017. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/04/2023). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 63 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP PEM

Version

• 12.1.0
• 12.1.1
• 12.1.2

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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