CVE-2024-1243: wazuh Input Validation Flaw

Description

Improper input validation in the Wazuh agent for Windows prior to version 4.8.0 allows an attacker with control over the Wazuh server or agent key to configure the agent to connect to a malicious UNC path. This results in the leakage of the machine account NetNTLMv2 hash, which can be relayed for remote code execution or used to escalate privileges to SYSTEM via AD CS certificate forging and other similar attacks.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-73 CWE-73

Affected Products

Vendor	Product	Versions
wazuh	wazuh	< 4.8.0

References

Advisories & Patches

https://github.com/wazuh/wazuh/security/advisories/GHSA-3crh-39qv-fxj7 https://pentraze.com/vulnerability-reports/CVE-2024-1243/ https://github.com/wazuh/wazuh/security/advisories/GHSA-3crh-39qv-fxj7

Exploits

https://github.com/wazuh/wazuh/security/advisories/GHSA-3crh-39qv-fxj7 https://pentraze.com/vulnerability-reports/CVE-2024-1243/ https://github.com/wazuh/wazuh/security/advisories/GHSA-3crh-39qv-fxj7

Other References

https://pentraze.com/

Frequently Asked Questions

What is CVE-2024-1243? +

Improper input validation in the Wazuh agent for Windows prior to version 4.8.0 allows an attacker with control over the Wazuh server or agent key to configure the agent to connect to a malicious UNC path. This results in the leakage of the machine account NetNTLMv2 hash, which can be relayed for remote code execution or used to escalate privileges to SYSTEM via AD CS certificate forging and other similar attacks. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2024-1243? +

CVE-2024-1243 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-1243? +

CVE-2024-1243 affects products from wazuh, specifically: wazuh. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-1243? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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