Detections
Analytics
F5 Networks BIG-IP : BIG-IP ASM WebSocket vulnerability (K88230177)
high Nessus Plugin ID 146398
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
The version of F5 Networks BIG-IP installed on the remote host is prior to 12.1.5.3 / 13.1.3.6 / 14.1.3.1 / 15.1.2 / 16.0.1.1 / 16.1.0. It is, therefore, affected by a vulnerability as referenced in the K88230177 advisory.- On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated. (CVE-2021-22976)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to one of the non-vulnerable versions listed in the F5 Solution K88230177.See Also
Plugin Details
Severity: High
ID: 146398
File Name: f5_bigip_SOL88230177.nasl
Version: 1.8
Type: local
Published: 2/11/2021
Updated: 11/3/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2021-22976
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:f5:big-ip_application_security_manager, cpe:/h:f5:big-ip
Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version
Exploit Ease: No known exploits are available
Patch Publication Date: 2/10/2021
Vulnerability Publication Date: 2/12/2021
Reference Information
CVE: CVE-2021-22976