// For flags

CVE-2023-49275

Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

Wazuh es una plataforma gratuita y de código abierto que se utiliza para la prevención, detección y respuesta a amenazas. Se detectó una desreferencia de puntero NULL durante la confusión del motor de análisis, lo que permitió a clientes malintencionados realizar DoS en el motor de análisis. El error ocurre cuando `analysisd` recibe un mensaje de syscollector con el `hotfix` `msg_type` pero sin una `timestamp`. Utiliza `cJSON_GetObjectItem()` para obtener el elemento del objeto `timestamp` y lo desreferencia sin verificar un valor `NULL`. Un cliente malintencionado puede hacer DoS en el motor de análisis. Esta vulnerabilidad se solucionó en 4.7.1.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-24 CVE Reserved
  • 2024-04-19 CVE Published
  • 2024-08-02 CVE Updated
  • 2025-04-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Wazuh
Search vendor "Wazuh"
 Wazuh
Search vendor "Wazuh" for product "Wazuh"
 >= 3.2.0 < 4.7.1
Search vendor "Wazuh" for product "Wazuh" and version " >= 3.2.0 < 4.7.1"
en
Affected