CVE-2021-22682 Privilege escalation in Cscape

High 7.8 Published 23 Apr 2021 Updated 3 Aug 2024

Unprivileged users can modify binaries and configuration files due to default full permissions, leading to local privilege escalation in Cscape HMI software.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22682?

CVE-2021-22682 is a high-severity vulnerability in Cscape, published on 23 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Cscape (All versions prior to 9.90 SP4) is configured by default to be installed for all users, which allows full permissions, including read/write access. This may allow unprivileged users to modify the binaries and configuration files and lead to local privilege escalation.

Weakness: CWE-284

Which versions are affected by CVE-2021-22682?

It affects 1 product.

Products include Hornerautomation Cscape.

How do I fix CVE-2021-22682?

No fix has been published for CVE-2021-22682 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-22682 being exploited?

There is no known exploitation of CVE-2021-22682 in the wild and no public exploit code.

Sources

Also known as GHSA-936c-39fp-q95f.