CVE-2021-20707 Path traversal in CLUSTERPRO X

High 7.5 Published 2 Nov 2021 Updated 3 Aug 2024

An attacker can read files uploaded via the network due to improper input validation in NEC CLUSTERPRO X and EXPRESSCLUSTER X Transaction Server.

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-2021-20707?

CVE-2021-20707 is a high-severity path traversal vulnerability in NEC Corporation CLUSTERPRO X, published on 2 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper input validation vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to read files upload via network..

Weakness: CWE-20

Which versions are affected by CVE-2021-20707?

It affects 4 products.

Products include Nec Clusterpro X, Nec Clusterpro X Singleserversafe, Nec Expresscluster X, Nec Expresscluster X Singleserversafe.

How do I fix CVE-2021-20707?

No fix has been published for CVE-2021-20707 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-2021-20707 being exploited?

There is no known exploitation of CVE-2021-20707 in the wild and no public exploit code.

Sources

Also known as GHSA-3jw5-8hpm-44m2.