CVE-2023-39143 Path traversal in n/a

Critical 9.8 Published Updated

Attackers can exploit path traversal to upload, read, or delete arbitrary files, potentially achieving remote code execution if external device integration is enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-39143?

CVE-2023-39143 is a critical path traversal vulnerability in n/a, published on 4 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration).

Weakness: CWE-22

Which versions are affected by CVE-2023-39143?

It affects 2 products.

Products include Papercut Papercut Mf, Papercut Papercut Ng.

How do I fix CVE-2023-39143?

No fix has been published for CVE-2023-39143 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-39143 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39143 exists.

Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-mm5w-gqw5-m4qx.

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