CVE-2023-49275

Public Exploit
Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.35%
Vendor Advisory github.com
Affected: wazuh wazuh
Published at:
Updated at:

References

Link Tags
https://github.com/wazuh/wazuh/security/advisories/GHSA-4mq7-w9r6-9975 vendor advisory exploit
https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1573 product
https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1578 product

Frequently Asked Questions

What is the severity of CVE-2023-49275?
CVE-2023-49275 has been scored as a medium severity vulnerability.
How to fix CVE-2023-49275?
To fix CVE-2023-49275, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-49275 being actively exploited in the wild?
It is possible that CVE-2023-49275 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-49275?
CVE-2023-49275 affects wazuh wazuh.
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