F5 BIG-IP up to 14.1.3/15.1.4.0/16.0.x Client SSL Profile resource consumption

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.
3.0	$0-$5k	0.00

A vulnerability, which was classified as problematic, was found in F5 BIG-IP up to 14.1.3/15.1.4.0/16.0.x (Firewall Software). This affects some unknown processing of the component Client SSL Profile. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-400. This is going to have an impact on availability. The summary by CVE is:

On BIG-IP versions 16.x before 16.1.0, 15.1.x before 15.1.4.1, and 14.1.2.6-14.1.4.4, when a Client SSL profile is configured on a virtual server with Client Certificate Authentication set to request/require and Session Ticket enabled and configured, processing SSL traffic can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The weakness was released 01/26/2022 as K08476614. It is possible to read the advisory at support.f5.com. This vulnerability is uniquely identified as CVE-2022-23015 since 01/10/2022. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Required for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 14.1.4, 15.1.4.1 or 16.1.0 eliminates this vulnerability.

Productinfoedit

Type

Firewall Software

Vendor

Name

BIG-IP

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

AV	AC	Au	C	I	A
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🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

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

Exploitinginfoedit

Class: Denial of service
CWE: CWE-400
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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

Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIG-IP 14.1.4/15.1.4.1/16.1.0

Timelineinfoedit

01/10/2022 CVE reserved
01/26/2022 +16 days Advisory disclosed
01/26/2022 +0 days VulDB entry created
01/28/2022 +2 days VulDB last update

Sourcesinfoedit

Vendor: f5.com

Advisory: K08476614
Status: Confirmed

CVE: CVE-2022-23015 (🔒)

Entryinfoedit

Created: 01/26/2022 08:50 AM
Updated: 01/28/2022 05:40 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍