TCP spoofing attack in F5 BIG-IP Linux kernel



Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2023-52881
CWE-ID CWE-451
Exploitation vector Network
Public exploit N/A
Vulnerable software
BIG-IP
Hardware solutions / Firmware

Vendor F5 Networks

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Spoofing attack

EUVDB-ID: #VU89895

Risk: Medium

CVSSv4.0: [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-52881

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error within the tcp_ack() function in net/ipv4/tcp_input.c, which can result in system accepting ACK responses for bytes that were never sent. A remote attacker can perform spoofing attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IP: 15.0.0 - 17.1.1.4

CPE2.3 External links

http://my.f5.com/manage/s/article/K000148479


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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