#VU101812 HTTP response splitting in Kerio Control - CVE-2024-52875

Vulnerability identifier: #VU101812

Vulnerability risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2024-52875

CWE-ID: CWE-113

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Kerio Control
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: GFI Software

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correclty process CRLF character sequences. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kerio Control: 9.2.5 - 9.4.5

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External links
https://karmainsecurity.com/KIS-2024-07

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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. However, proof of concept for this vulnerability is available.