Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-22989 |
CWE-ID | CWE-78 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
BIG-IP Advanced WAF Client/Desktop applications / Antivirus software/Personal firewalls BIG-IP ASM Hardware solutions / Security hardware applicances |
Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU51495
Risk: Medium
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-22989
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation within the Traffic Management User Interface (TMUI), when running in Appliance mode with Advanced WAF or ASM provisioned. A remote privileged user with the roles Administrator, Resource Administrator, or Application Security Administrator with network access to the Configuration utility, through the BIG-IP management port or self IP addresses can send specially crafted request to the system and execute arbitrary OS commands.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBIG-IP Advanced WAF: 11.6.1 - 16.0.1
BIG-IP ASM: 11.6.1 HF1 - 16.0.1
CPE2.3http://support.f5.com/csp/article/K56142644
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.