CVE-2021-33725 Path traversal in SINEC NMS

Critical 9.1 Published Updated

An attacker can delete arbitrary files or directories in Siemens SINEC NMS due to improper path validation, potentially disrupting system operations.

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-2021-33725?

CVE-2021-33725 is a critical path traversal vulnerability in Siemens SINEC NMS, published on 12 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to delete arbitrary files or directories under a user controlled path and does not correctly check if the relative path is still within the intended target directory.

Weakness: CWE-22

Which versions are affected by CVE-2021-33725?

It affects 1 product.

Products include Siemens Sinec Nms.

How do I fix CVE-2021-33725?

No fix has been published for CVE-2021-33725 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-2021-33725 being exploited?

There is no known exploitation of CVE-2021-33725 in the wild and no public exploit code.

Sources

Also known as GHSA-pq7q-x76h-79v7.

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