F5 BIG-IP APM VPN Tunnel cleartext transmission

CVSS Meta Temp Score
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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.
6.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in F5 BIG-IP APM and classified as problematic. This affects an unknown part of the component VPN Tunnel Handler. This manipulation causes cleartext transmission. The identification of this vulnerability is CVE-2023-43125. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in F5 BIG-IP APM (Firewall Software) (the affected version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component VPN Tunnel Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. The CWE definition for the vulnerability is CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. As an impact it is known to affect confidentiality. The summary by CVE is:

BIG-IP APM clients may send IP traffic outside of the VPN tunnel.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

The weakness was shared 09/27/2023 as K000136909. The advisory is shared at my.f5.com. This vulnerability is known as CVE-2023-43125 since 09/18/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/20/2023). MITRE ATT&CK project uses the attack technique T1040 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 8.2
NVD Vector: 🔍

CNA Base Score: 6.8
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: Cleartext transmission
CWE: CWE-319 / CWE-310
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/18/2023 🔍
09/27/2023 +9 days 🔍
09/27/2023 +0 days 🔍
10/20/2023 +23 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000136909
Status: Confirmed

CVE: CVE-2023-43125 (🔍)
GCVE (CVE): GCVE-0-2023-43125
GCVE (VulDB): GCVE-100-240649

Entryinfo

Created: 09/27/2023 19:15
Updated: 10/20/2023 14:10
Changes: 09/27/2023 19:15 (49), 10/20/2023 14:10 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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