#VU79842 Path traversal in PDF-XChange Editor - CVE-2023-39506

Vulnerability identifier: #VU79842

Vulnerability risk: High

CVSSv4.0: 5.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-39506

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PDF-XChange Editor
Client/Desktop applications / Office applications

Vendor: PDF-XChange

Description

The vulnerability allows a remote attacker to overwrite arbitrary files on the system.

The vulnerability exists due to input validation error when processing directory traversal sequences within the createDataObject method. A remote attacker can trick the victim to open a specially crafted PDF file and compromise the affected system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PDF-XChange Editor: 9.0.350.0 - 10.0.0.370

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-1147/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.