CVE-2021-30463 Privilege escalation in n/a

High 7.8 Published 8 Apr 2021 Updated 3 Aug 2024

Attackers can escalate privileges and take over the admin account by exploiting unsafe file permissions and symlink handling in VestaCP.

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-2021-30463?

CVE-2021-30463 is a high-severity vulnerability in n/a, published on 8 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

VestaCP through 0.9.8-24 allows attackers to gain privileges by creating symlinks to files for which they lack permissions. After reading the RKEY value from user.conf under the /usr/local/vesta/data/users/admin directory, the admin password can be changed via a /reset/?action=confirm&user=admin&code= URI. This occurs because chmod is used unsafely.

Weakness: CWE-59

Which versions are affected by CVE-2021-30463?

It affects 1 product.

Products include Vestacp Control Panel.

How do I fix CVE-2021-30463?

No fix has been published for CVE-2021-30463 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-30463 being exploited?

There is no known exploitation of CVE-2021-30463 in the wild and no public exploit code.

Sources

Also known as GHSA-58p9-fwrr-259c.