VDB-253859 · CVE-2024-21789 · K000137270

F5 BIG-IP Advanced WAF/BIG-IP ASM up to 17.1.0 Virtual Server release of resource

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in F5 BIG-IP Advanced WAF and BIG-IP ASM up to 17.1.0. Affected by this issue is some unknown functionality of the component Virtual Server. The manipulation leads to release of resource. This vulnerability is traded as CVE-2024-21789. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in F5 BIG-IP Advanced WAF and BIG-IP ASM up to 17.1.0 (Firewall Software) and classified as critical. This issue affects an unknown code of the component Virtual Server. The manipulation with an unknown input leads to a release of resource vulnerability. Using CWE to declare the problem leads to CWE-772. The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed. Impacted is availability. The summary by CVE is:

When a BIG-IP ASM/Advanced WAF security policy is configured on a virtual server, undisclosed requests 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 shared 02/14/2024 by F5 as K000137270. It is possible to read the advisory at my.f5.com. The identification of this vulnerability is CVE-2024-21789 since 02/01/2024. 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 17.1.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Name

Version

License

commercial

Website

Vendor: https://f5.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 7.5
NVD Vector: 🔍

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

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Release of resource
CWE: CWE-772 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: 🔍

Upgrade: BIG-IP Advanced WAF/BIG-IP ASM 17.1.1

Timelineinfo

02/01/2024 🔍
02/14/2024 +13 days 🔍
02/14/2024 +0 days 🔍
12/13/2024 +303 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000137270
Researcher: F5
Status: Confirmed

CVE: CVE-2024-21789 (🔍)
GCVE (CVE): GCVE-0-2024-21789
GCVE (VulDB): GCVE-100-253859

Entryinfo

Created: 02/14/2024 18:38
Updated: 12/13/2024 02:38
Changes: 02/14/2024 18:38 (53), 12/13/2024 02:38 (26)
Complete: 🔍
Cache ID: 216::103