CVE-2021-42794 Server-side request forgery in n/a

Medium 5.3 Published 16 Dec 2023 Updated 4 Aug 2024

Attackers can use malicious connection strings in AVEVA Edge to perform LAN port scanning, potentially exposing internal network topology.

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-2021-42794?

CVE-2021-42794 is a medium-severity server-side request forgery vulnerability in n/a, published on 16 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior. The application allows a client to provide a malicious connection string that could allow an adversary to port scan the LAN, depending on the hosts' responses.

Which versions are affected by CVE-2021-42794?

It affects 1 product.

Products include Aveva Edge.

How do I fix CVE-2021-42794?

No fix has been published for CVE-2021-42794 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2021-42794 being exploited?

There is no known exploitation of CVE-2021-42794 in the wild and no public exploit code.

Sources

Also known as GHSA-r275-q95r-mr46.