F5 BIG-IP AFM up to 15.1.8/16.1.3/17.1.0 IPS Engine allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in F5 BIG-IP AFM up to 15.1.8/16.1.3/17.1.0. This issue affects some unknown processing of the component IPS Engine. Such manipulation leads to allocation of resources. This vulnerability is uniquely identified as CVE-2024-21771. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in F5 BIG-IP AFM up to 15.1.8/16.1.3/17.1.0 (Firewall Software). It has been rated as critical. Affected by this issue is an unknown function of the component IPS Engine. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

The weakness was disclosed 02/14/2024 as K000137595. The advisory is available at my.f5.com. This vulnerability is handled as CVE-2024-21771 since 02/01/2024. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 15.1.9, 16.1.4 or 17.1.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / 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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP AFM 15.1.9/16.1.4/17.1.1

Timelineinfo

02/01/2024 🔍
02/14/2024 +13 days 🔍
02/14/2024 +0 days 🔍
01/24/2025 +345 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000137595
Status: Confirmed

CVE: CVE-2024-21771 (🔍)
GCVE (CVE): GCVE-0-2024-21771
GCVE (VulDB): GCVE-100-253862

Entryinfo

Created: 02/14/2024 18:39
Updated: 01/24/2025 04:43
Changes: 02/14/2024 18:39 (52), 01/24/2025 04:43 (26)
Complete: 🔍
Cache ID: 216::103

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