PT-2023-9078 · Wazuh · Wazuh

D0Ntrash · Published 2023-11-28 · Updated 2025-01-09 · CVE-2023-50260

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Wazuh versions prior to 4.7.2

Description The issue is related to the host deny script in Wazuh's active response feature, which allows for the execution of arbitrary commands on the target system due to improper input validation. This can be exploited by injecting arbitrary commands into the /etc/hosts.deny file using the spawn directive. The vulnerability can lead to local privilege escalation (LPE) on the server as root and remote code execution (RCE) on the agent as root.

Recommendations For versions prior to 4.7.2, update to version 4.7.2 or later to fix the vulnerability. As a temporary workaround, consider restricting access to the /var/ossec/active-response/bin/host deny script to minimize the risk of exploitation. Avoid using the host deny script until the issue is resolved.

Exploit

Fix

LPE

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2024-03449

CVE-2023-50260

GHSA-MJQ2-XF8G-68VW

ZDI-24-398

Affected Products

Wazuh

References · 12

• 🔥 https://github.com/wazuh/wazuh/security/advisories/GHSA-mjq2-xf8g-68vw · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50260.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-50260 · Security Note
• https://osv.dev/vulnerability/CVE-2023-50260 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-24-398 · Security Note
• https://bdu.fstec.ru/vul/2024-03449 · Security Note
• https://github.com/wazuh/wazuh/pull/20656 · Note
• https://t.me/cvenotify/77447 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2024042209 · Note
• https://t.me/cvenotify/77467 · Telegram Post
• https://t.me/cvenotify/106957 · Telegram Post
• https://twitter.com/ianbishop2021/status/1783934075428020549 · Twitter Post