Cross-site scripting in iControl REST in F5 BIG-IP

1) Cross-site scripting

EUVDB-ID: #VU50616

Risk: Low

CVSSv4.0: [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:U/U:Clear]

CVE-ID: CVE-2021-22978

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

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 passed to certain iControl REST endpoints. 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

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 HF1 - 16.0.0

BIG-IP LTM: 11.6.1 HF1 - 16.0.0

BIG-IP AAM: 11.6.1 HF1 - 16.0.0

BIG-IP Advanced WAF: 11.6.1 - 16.0.0

BIG-IP AFM: 11.6.1 HF1 - 16.0.0

BIG-IP Analytics: 11.6.1 HF1 - 16.0.0

BIG-IP APM: 11.6.1 HF1 - 16.0.0

BIG-IP ASM: 11.6.1 HF1 - 16.0.0

BIG-IP DDHD: 11.6.1 - 16.0.0

BIG-IP DNS: 11.6.1 - 16.0.0

BIG-IP FPS: 11.6.1 - 16.0.0

BIG-IP GTM: 11.6.1 HF1 - 16.0.0

BIG-IP Link Controller: 11.6.1 HF1 - 16.0.0

BIG-IP PEM: 11.6.1 HF1 - 16.0.0

BIG-IP SSLO: 11.6.1 - 16.0.0

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:11.6.5.2:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:12.1.5.2:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:13.1.3.4:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.3:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:15.1.0.5:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:16.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:11.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:11.6.2 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_aam:11.6.1:HF1:*:*:*:*:*:*
• cpe:2.3:a:f5_networks:big-ip_advanced_waf:11.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_afm:11.6.1:HF1:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_analytics:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_apm:11.6.1:HF1:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_asm:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ddhd:11.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_dns:11.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_fps:11.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_gtm:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_link_controller:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_pem:11.6.1 HF1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_sslo:11.6.1:*:*:*:*:*:*:*

External links

http://support.f5.com/csp/article/K87502622

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.