CVE-2020-5837 Path traversal in Symantec Endpoint Protection

High 7.8 Published Updated

Attackers can exploit symbolic link handling in log files to achieve privilege escalation in Symantec Endpoint Protection.

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-2020-5837?

CVE-2020-5837 is a high-severity path traversal vulnerability in Symantec Endpoint Protection, published on 11 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Symantec Endpoint Protection, prior to 14.3, may not respect file permissions when writing to log files that are replaced by symbolic links, which can lead to a potential elevation of privilege.

Weakness: CWE-59

Which versions are affected by CVE-2020-5837?

It affects 1 product.

Products include Symantec Endpoint Protection.

How do I fix CVE-2020-5837?

No fix has been published for CVE-2020-5837 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-5837 being exploited?

There is no known exploitation of CVE-2020-5837 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Symantec Endpoint Protection vulnerabilities

Sources

Also known as GHSA-qfhx-mfmg-3wfg.

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