CVE-2019-3696 pcp: Local privilege escalation from user pcp to root through migrate_tempdirs
Local attackers can exploit a path traversal flaw in pcp to overwrite arbitrary files, leading to privilege escalation to root.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-3696?
CVE-2019-3696 is a high-severity path traversal vulnerability in SUSE Linux Enterprise High Performance Computing 15-ESPOS, published on 3 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Improper Limitation of a Pathname to a Restricted Directory vulnerability in the packaging of pcp of SUSE Linux Enterprise High Performance Computing 15-ESPOS, SUSE Linux Enterprise High Performance Computing 15-LTSS, SUSE Linux Enterprise Module for Development Tools 15, SUSE Linux Enterprise Module for Development Tools 15-SP1, SUSE Linux Enterprise Module for Open Buildservice Development Tools 15, SUSE Linux Enterprise Server 15-LTSS, SUSE Linux Enterprise Server for SAP 15, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE Linux Enterprise Software Development Kit 12-SP5; openSUSE Leap 15.1 allows local user pcp to overwrite arbitrary files with arbitrary content. This issue affects: SUSE Linux Enterprise High Performance Computing 15-ESPOS pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise High Performance Computing 15-LTSS pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise Module for Development Tools 15 pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise Module for Development Tools 15-SP1 pcp versions prior to 4.3.1-3.5.3. SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise Server 15-LTSS pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise Server for SAP 15 pcp versions prior to 3.11.9-5.8.1. SUSE Linux Enterprise Software Development Kit 12-SP4 pcp versions prior to 3.11.9-6.14.1. SUSE Linux Enterprise Software Development Kit 12-SP5 pcp versions prior to 3.11.9-6.14.1. openSUSE Leap 15.1 pcp versions prior to 4.3.1-lp151.2.3.1.
Weakness: CWE-22
Which versions are affected by CVE-2019-3696?
It affects 1 product.
Products include Opensuse Pcp.
How do I fix CVE-2019-3696?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2019-3696 being exploited?
There is no known exploitation of CVE-2019-3696 in the wild and no public exploit code.
Other vulnerabilities in SUSE Linux Enterprise High Performance Computing 15-ESPOS
Sources
Also known as GHSA-crq2-xjm7-62p8.