#VU29449 Cross-site scripting in F5 Networks products - CVE-2020-5905

Vulnerability identifier: #VU29449

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2020-5905

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP LTM
Hardware solutions / Security hardware applicances
BIG-IP AFM
Hardware solutions / Security hardware applicances
BIG-IP Analytics
Hardware solutions / Security hardware applicances
BIG-IP ASM
Hardware solutions / Security hardware applicances
BIG-IP FPS
Hardware solutions / Security hardware applicances
BIG-IP GTM
Hardware solutions / Security hardware applicances
BIG-IP PEM
Hardware solutions / Security hardware applicances
BIG-IP AAM
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP DNS
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP Link Controller
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: F5 Networks

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the BIG-IP Configuration utility Network > WCCPpage. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IP LTM: 11.6.0 - 11.6.5.2

BIG-IP AAM: 11.6.0 HF5 - 11.6.5.2

BIG-IP AFM: 11.6.0 - 11.6.5.2

BIG-IP Analytics: 11.6.0 - 11.6.5.2

BIG-IP ASM: 11.6.0 - 11.6.5.2

BIG-IP DNS: 11.6.0 - 11.6.5.2

BIG-IP FPS: 11.6.0 - 11.6.5.2

BIG-IP GTM: 11.6.0 - 11.6.5.2

BIG-IP Link Controller: 11.6.0 - 11.6.5.2

BIG-IP PEM: 11.6.0 - 11.6.5.2

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External links
https://support.f5.com/csp/article/K07051153

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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. However, proof of concept for this vulnerability is available.