7.8
HIGH
CVE-2023-40477
WinRAR Recovery Volume Array Index Validation Remote Code Execution
Description

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.

INFO

Published Date :

May 3, 2024, 3:15 a.m.

Last Modified :

May 3, 2024, 12:50 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2023-40477 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-40477 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Rarlab winrar
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-40477.

URL Resource
https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa
https://www.zerodayinitiative.com/advisories/ZDI-23-1152/

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

CVE-2023-40477 PoC by Wild-Pointer

Python

Updated: 3 months ago
25 stars 9 fork 9 watcher
Born at : Aug. 29, 2023, 4:29 p.m. This repo has been linked 2 different CVEs too.

Scan for WinRAR files affected to CVE-2023-40477

PowerShell

Updated: 1 year, 2 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 29, 2023, 2:41 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40477 vulnerability anywhere in the article.

  • Cybersecurity News
Warning: Fake WinRar Websites Distributing Malware

SonicWall has recently issued a cybersecurity alert about a deceptive website that mimics the official WinRar site. This fake site, win-rar.co, not only closely resembles the legitimate WinRar site bu ... Read more

Published Date: Aug 07, 2024 (2 months, 4 weeks ago)

The following table lists the changes that have been made to the CVE-2023-40477 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by [email protected]

    May. 03, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-23-1152/ [No types assigned]
    Added Reference Zero Day Initiative https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa [No types assigned]
    Added CWE Zero Day Initiative CWE-129
    Added CVSS V3 Zero Day Initiative AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40477 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-40477 weaknesses.

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability