PT-2024-13720 · Wazuh · Wazuh

D0Ntrash · Published 2024-04-19 · Updated 2025-01-09 · CVE-2023-49275

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Wazuh versions prior to 4.7.1

Description A NULL pointer dereference was detected in the analysis engine of Wazuh, a free and open source platform used for threat prevention, detection, and response. This issue occurs when the analysisd receives a syscollector message with the hotfix msg type but lacking a timestamp. The cJSON GetObjectItem() function is used to get the timestamp object item, which is then dereferenced without checking for a NULL value. This allows malicious clients to perform a Denial of Service (DoS) attack on the analysis engine.

Recommendations For versions prior to 4.7.1, update to version 4.7.1 to resolve the issue. As a temporary workaround, consider restricting access to the analysisd component to minimize the risk of exploitation. Avoid sending syscollector messages with the hotfix msg type but lacking a timestamp until the issue is resolved.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2023-49275

GHSA-4MQ7-W9R6-9975

Affected Products

Wazuh

References · 9

• 🔥 https://github.com/wazuh/wazuh/security/advisories/GHSA-4mq7-w9r6-9975 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49275.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-49275 · Security Note
• https://osv.dev/vulnerability/CVE-2023-49275 · Vendor Advisory
• https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1573 · Note
• https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1578 · Note
• https://t.me/cvenotify/106956 · Telegram Post
• https://t.me/cvenotify/77446 · Telegram Post
• https://t.me/cvenotify/77466 · Telegram Post