F5 BIG-IP up to 13.1.5/14.1.5/15.1.8/16.1.3 Attack Signature Check access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP up to 13.1.5/14.1.5/15.1.8/16.1.3 and classified as critical. This affects an unknown part of the component Attack Signature Check Handler. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2023-40534. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in F5 BIG-IP up to 13.1.5/14.1.5/15.1.8/16.1.3 (Firewall Software) and classified as critical. This vulnerability affects an unknown code of the component Attack Signature Check Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 10/10/2023 as K000135944. The advisory is shared for download at my.f5.com. This vulnerability was named CVE-2023-40534 since 10/05/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 15.1.9, 16.1.4 or 17.0 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: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Access control
CWE: CWE-284 / CWE-266
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 15.1.9/16.1.4/17.0

Timelineinfo

10/05/2023 🔍
10/10/2023 +5 days 🔍
10/10/2023 +0 days 🔍
10/28/2023 +18 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000135944
Status: Confirmed

CVE: CVE-2023-40534 (🔍)
GCVE (CVE): GCVE-0-2023-40534
GCVE (VulDB): GCVE-100-241672

Entryinfo

Created: 10/10/2023 13:43
Updated: 10/28/2023 13:47
Changes: 10/10/2023 13:43 (41), 10/28/2023 13:41 (1), 10/28/2023 13:47 (12)
Complete: 🔍
Cache ID: 216::103

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