CVE-2023-53959 — CRITICAL (9.8)

Vulnerability Description

FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate a reverse shell payload using msfvenom and replace the missing DLL to achieve remote code execution when the application launches.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Filezilla-Project	Filezilla Client	3.63.1

Related Weaknesses (CWE)

CWE-427

References

https://filezilla-project.org/Product
https://www.exploit-db.com/exploits/51267ExploitThird Party AdvisoryVDB Entry
https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-Third Party Advisory

FAQ

What is CVE-2023-53959?

CVE-2023-53959 is a vulnerability with a CVSS score of 9.8 (CRITICAL). FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate...

How severe is CVE-2023-53959?

CVE-2023-53959 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-53959?

Check the references section above for vendor advisories and patch information. Affected products include: Filezilla-Project Filezilla Client.