A vulnerability has been found in F5 BIG-IP APM up to 14.1.2.3/15.0.1.2/15.1.0.1 (Firewall Software) and classified as problematic. Affected by this vulnerability is an unknown code of the component APM Portal Access. The manipulation as part of a HTTP Response leads to a cross site scripting vulnerability (Reflected). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

On versions 15.1.0-15.1.0.1, 15.0.0-15.0.1.2, and 14.1.0-14.1.2.3, in BIG-IP APM portal access, a specially crafted HTTP request can lead to reflected XSS after the BIG-IP APM system rewrites the HTTP response from the untrusted backend server and sends it to the client.

The weakness was shared 04/30/2020 (Website). The advisory is shared at support.f5.com. This vulnerability is known as CVE-2020-5889 since 01/06/2020. The attack can be launched remotely. A single authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/01/2020). MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP APM

Version

• 14.1.2.0
• 14.1.2.1
• 14.1.2.2
• 14.1.2.3
• 15.0.1.0
• 15.0.1.1
• 15.0.1.2
• 15.1.0.0
• 15.1.0.1

License

• commercial

CPE 2.3info

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CPE 2.2info

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