F5 BIG-IP Traffic Management Microkernel Pattern denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP. It has been declared as problematic. The impacted element is an unknown function of the component Traffic Management Microkernel. Executing a manipulation as part of Pattern can lead to denial of service. This vulnerability is tracked as CVE-2020-5852. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic was found in F5 BIG-IP (Firewall Software) (version now known). This vulnerability affects some unknown processing of the component Traffic Management Microkernel. The manipulation as part of a Pattern leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM). This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. This issue only impacts specific engineering hotfixes. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.2.1.0.83.4-ENG Hotfix-BIGIP-12.1.4.1.0.97.6-ENG Hotfix-BIGIP-11.5.4.2.74.291-HF2

The weakness was disclosed 01/14/2020 (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2020-5852 since 01/06/2020. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2020 🔍
01/14/2020 +8 days 🔍
01/15/2020 +1 days 🔍
03/21/2024 +1527 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K53590702
Status: Not defined

CVE: CVE-2020-5852 (🔍)
GCVE (CVE): GCVE-0-2020-5852
GCVE (VulDB): GCVE-100-148672

Entryinfo

Created: 01/15/2020 11:17
Updated: 03/21/2024 10:08
Changes: 01/15/2020 11:17 (38), 01/15/2020 11:22 (18), 03/21/2024 10:08 (18)
Complete: 🔍
Cache ID: 216::103

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