CVE-2021-35250 Directory Transversal Vulnerability in Serv-U 15.3

High 7.5 Published Updated

An attacker can exploit a directory traversal flaw in Serv-U to access installation and server files, requiring a patch to mitigate.

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-2021-35250?

CVE-2021-35250 is a high-severity path traversal vulnerability in Solarwinds Serv-U, published on 25 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to the Serv-U installation and server files. This issue has been resolved in Serv-U 15.3 Hotfix 1.

Weakness: CWE-22

Which versions are affected by CVE-2021-35250?

It affects 1 product.

Products include Solarwinds Serv-U.

How do I fix CVE-2021-35250?

No fix has been published for CVE-2021-35250 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-2021-35250 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-35250 exists.

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

All Solarwinds Serv-U vulnerabilities

Sources

Also known as GHSA-7pjc-f7p6-mpfc.

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