F5 BIG-IP APM up to 16.0.1 OCSP Authentication resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in F5 BIG-IP APM up to 16.0.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component OCSP Authentication. This manipulation causes resource consumption. This vulnerability is registered as CVE-2021-23047. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in F5 BIG-IP APM up to 16.0.1 (Firewall Software). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component OCSP Authentication. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability.

The weakness was published 08/26/2021 as K79428827. It is possible to read the advisory at support.f5.com. This vulnerability is known as CVE-2021-23047. 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 14.1.4.3, 15.1.3.1 or 16.1.0 eliminates this vulnerability.

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

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: 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 APM 14.1.4.3/15.1.3.1/16.1.0

Timelineinfo

01/06/2021 🔍
08/26/2021 +231 days 🔍
08/26/2021 +0 days 🔍
09/01/2021 +6 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K79428827
Status: Confirmed

CVE: CVE-2021-23047 (🔍)
GCVE (CVE): GCVE-0-2021-23047
GCVE (VulDB): GCVE-100-181555

Entryinfo

Created: 08/26/2021 17:08
Updated: 09/01/2021 08:09
Changes: 08/26/2021 17:08 (40), 09/01/2021 08:09 (1)
Complete: 🔍
Cache ID: 216::103

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