CVE-2018-5349 Privilege escalation in n/a

High 7.8 Published Updated

Local attackers can escalate privileges to SYSTEM by placing a malicious DLL in a world-writable directory loaded by the Heimdal agent.

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-2018-5349?

CVE-2018-5349 is a high-severity vulnerability in n/a, published on 22 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been found in Heimdal PRO v2.2.190, but it is most likely also present in Heimdal FREE and Heimdal CORP. Faulty permissions on the directory "C:\ProgramData\Heimdal Security\Heimdal Agent" allow BUILTIN\Users to write new files to the directory. On startup, the process Heimdal.MonitorServices.exe running as SYSTEM will attempt to load version.dll from this directory. Placing a malicious version.dll in this directory will result in privilege escalation. NOTE: any affected Heimdal products are completely unrelated to the Heimdal vendor of a Kerberos 5 product on the h5l.org web site.

Weakness: CWE-732

Which versions are affected by CVE-2018-5349?

It affects 1 product.

Products include Heimdalsecurity Heimdal.

How do I fix CVE-2018-5349?

No fix has been published for CVE-2018-5349 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-5349 being exploited?

There is no known exploitation of CVE-2018-5349 in the wild and no public exploit code.

Sources

Also known as GHSA-jxhq-c35p-v59f.

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