// 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
* 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
  • 2024-04-20 EPSS Updated
  • 2024-08-02 CVE 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