CVE-2023-49275 MEDIUM

CVE-2023-49275: Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd

Vendor Wazuh
Product wazuh
Weakness CWE-476
Published April 19, 2024
Last update August 2, 2024

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. A NULL pointer dereference was detected during fuzzing of the analysis engine, allowing malicious clients to DoS the analysis engine. The bug occurs when `analysisd` receives a syscollector message with the `hotfix` `msg_type` but lacking a `timestamp`. It uses `cJSON_GetObjectItem()` to get the `timestamp` object item and dereferences it without checking for a `NULL` value. A malicious client can DoS the analysis engine. This vulnerability is fixed in 4.7.1.

Key dates

02Disclosure timeline

April 19, 2024 CVE published
August 2, 2024 Record updated