What is the severity of CVE-2023-51640?

CVE-2023-51640 is rated as critical due to its potential for remote code execution.

How do I fix CVE-2023-51640?

To mitigate CVE-2023-51640, update Allegra to the latest version beyond 7.5.1 to address the vulnerability.

What kind of attacks can be executed using CVE-2023-51640?

CVE-2023-51640 allows attackers to perform remote code execution by exploiting a directory traversal flaw.

Is authentication required to exploit CVE-2023-51640?

Yes, CVE-2023-51640 requires authentication to exploit the vulnerability.

What versions of Allegra are affected by CVE-2023-51640?

CVE-2023-51640 affects Allegra versions prior to 7.5.1.

Vulnerability/
CVE-2023-51640

high

7.2

CWE

22/11/2024

3/1/2025

21/2/2025

CVE-2023-51640: Allegra extarctZippedFile Directory Traversal Remote Code Execution Vulnerability

First published: Fri Nov 22 2024(Updated: )

Allegra extarctZippedFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the extarctZippedFile [sic] method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22504.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Alltena Allegra	<7.5.1
Allegro

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Frequently Asked Questions

What is the severity of CVE-2023-51640?
CVE-2023-51640 is rated as critical due to its potential for remote code execution.
How do I fix CVE-2023-51640?
To mitigate CVE-2023-51640, update Allegra to the latest version beyond 7.5.1 to address the vulnerability.
What kind of attacks can be executed using CVE-2023-51640?
CVE-2023-51640 allows attackers to perform remote code execution by exploiting a directory traversal flaw.
Is authentication required to exploit CVE-2023-51640?
Yes, CVE-2023-51640 requires authentication to exploit the vulnerability.
What versions of Allegra are affected by CVE-2023-51640?
CVE-2023-51640 affects Allegra versions prior to 7.5.1.

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