// For flags

CVE-2023-40477

RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.

Validación incorrecta del volumen de recuperación de RARLAB WinRAR de la vulnerabilidad de ejecución remota de código del índice de matriz. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de RARLAB WinRAR. Se requiere la interacción del usuario para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe en el procesamiento de volúmenes de recuperación. El problema se debe a la falta de una validación adecuada de los datos proporcionados por el usuario, lo que puede provocar un acceso a la memoria más allá del final de un búfer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Era ZDI-CAN-21233.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: goodbyeselene
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-08-14 CVE Reserved
  • 2023-08-17 CVE Published
  • 2023-08-30 First Exploit
  • 2024-08-02 CVE Updated
  • 2024-09-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-129: Improper Validation of Array Index
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
RARLAB
Search vendor "RARLAB"
WinRAR
Search vendor "RARLAB" for product "WinRAR"
6.21
Search vendor "RARLAB" for product "WinRAR" and version "6.21"
en
Affected