Input validation error in BIG-IP ASM - CVE-2021-23010
Published: April 29, 2021
Vulnerability identifier: #VU52746
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-23010
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing WebSocket requests with JSON payloads using the default JSON content profile in the ASM security policy. A remote attacker can pass specially crafted input to the system and crash the BIG-IP ASM bd process.
Affected software
BIG-IP ASM
How to mitigate CVE-2021-23010
Install updates from vendor's website.
BIG-IP ASM - addressed in versions 12.1.5.3, 13.1.3.5, 14.1.3.1, 15.1.2, 16.0.1.1