F5 BIG-IP LTM up to 16.1.2 HTTP null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in F5 BIG-IP LTM, BIG-IP Advanced WAF, BIG-IP ASM and BIG-IP APM up to 16.1.2 (Firewall Software). Affected is some unknown functionality of the component HTTP Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was published 05/06/2022 as K14229426. The advisory is available at support.f5.com. This vulnerability is traded as CVE-2022-29491 since 04/19/2022. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Anna (416e6e61) in HTTP POST Request and been published 3 days after the advisory. The exploit is shared for download at twitter.com. It is declared as proof-of-concept.

Upgrading to version 14.1.4.6, 15.1.5, 16.1.2.2 or 17.0.0 eliminates this vulnerability.

Productinfo

Type

Firewall Software

Vendor

Name

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (F5 Networks): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Anna (416e6e61)
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: BIG-IP LTM/BIG-IP Advanced WAF/BIG-IP ASM/BIG-IP APM 14.1.4.6/15.1.5/16.1.2.2/17.0.0

Timelineinfo

04/19/2022 🔍
05/06/2022 +17 days 🔍
05/06/2022 +0 days 🔍
05/09/2022 +2 days 🔍
05/10/2022 +1 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K14229426
Status: Confirmed

CVE: CVE-2022-29491 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/06/2022 08:44
Updated: 05/10/2022 07:17
Changes: 05/06/2022 08:44 (49), 05/08/2022 10:03 (1), 05/10/2022 06:57 (9), 05/10/2022 07:17 (2)
Complete: 🔍
Committer: misc