CVE-2020-36657 Privilege escalation in n/a

High 7.8 Published Updated

Local attackers with uptimed account access can gain root privileges via hard link attacks due to unsafe chown operations in uptimed.

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-2020-36657?

CVE-2020-36657 is a high-severity vulnerability in n/a, published on 25 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user account) to gain root privileges by creating a hard link within the /var/spool/uptimed directory, because there is an unsafe chown -R call.

Weakness: CWE-59

Which versions are affected by CVE-2020-36657?

It affects 1 product.

Products include Uptimed Project Uptimed.

How do I fix CVE-2020-36657?

No fix has been published for CVE-2020-36657 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-36657 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36657 exists.

Sources

Also known as GHSA-h9jm-ppr9-845g, UBUNTU-CVE-2020-36657.

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