Remote code execution in Wazuh

1) Code Injection

EUVDB-ID: #VU88865

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-50260

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in host_deny AR script. A remote user can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wazuh: 4.2.0 - 4.7.1

CPE2.3

• cpe:2.3:a:wazuh:wazuh:4.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:wazuh:wazuh:4.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:wazuh:wazuh:4.2.2:*:*:*:*:*:*:*

External links

https://github.com/wazuh/wazuh/security/advisories/GHSA-mjq2-xf8g-68vw
https://www.zerodayinitiative.com/advisories/ZDI-24-398/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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