Remote denial of service in F5 BIG-IP TCP profile



Published: 2023-10-11 | Updated: 2024-01-05
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-40542
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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BIG-IP
Hardware solutions / Firmware

Vendor F5 Networks

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU85014

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-40542

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when TCP Verified Accept is enabled on a TCP profile. A remote attacker can send specially crafted traffic to the system, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 13.0.0 - 16.1.3.5

External links

http://my.f5.com/manage/s/article/K000134652


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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