Tenable.sc update for Apache HTTP server



Published: 2023-03-28 | Updated: 2023-06-26
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-25690
CWE-ID CWE-113
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Tenable.sc
Server applications / DLP, anti-spam, sniffers

Vendor Tenable Network Security

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) HTTP response splitting

EUVDB-ID: #VU73107

Risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-25690

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: Yes

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 in mod_rewrite and mod_proxy. 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 update from vendor's website.

Vulnerable software versions

Tenable.sc: 5.22.0 - 6.0.0

External links

http://www.tenable.com/security/tns-2023-17


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.



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