CVE-2017-6821 Path traversal in n/a

Critical 9.8 Published 23 May 2017 Updated 5 Aug 2024

Attackers can exploit a directory traversal flaw in Zimbra Collaboration Suite to access unauthorized files or resources.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-6821?

CVE-2017-6821 is a critical path traversal vulnerability in Synacor Zimbra Collaboration Suite, published on 23 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Directory traversal vulnerability in Zimbra Collaboration Suite (aka ZCS) before 8.7.6 allows attackers to have unspecified impact via unknown vectors.

Weakness: CWE-22

Which versions are affected by CVE-2017-6821?

It affects 1 product.

Products include Synacor Zimbra Collaboration Suite.

How do I fix CVE-2017-6821?

No fix has been published for CVE-2017-6821 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-2017-6821 being exploited?

There is no known exploitation of CVE-2017-6821 in the wild and no public exploit code.

All Synacor Zimbra Collaboration Suite vulnerabilities

Sources

Also known as GHSA-39f6-pwpp-gv5c.