CVE-2020-14172 Deserialization in Jira Server

Critical 9.8 Published Updated

Remote attackers can achieve code execution via insecure deserialization in velocity templates if they exploit a server-side template injection vulnerability.

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-2020-14172?

CVE-2020-14172 is a critical unsafe deserialization vulnerability in Atlassian Jira, published on 3 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This issue exists to document that a security improvement in the way that Jira Server and Data Center use velocity templates has been implemented. The way in which velocity templates were used in Atlassian Jira Server and Data Center in affected versions allowed remote attackers to achieve remote code execution via insecure deserialization, if they were able to exploit a server side template injection vulnerability. The affected versions are before version 7.13.0, from version 8.0.0 before 8.5.0, and from version 8.6.0 before version 8.8.1.

Weakness: CWE-502

Which versions are affected by CVE-2020-14172?

It affects 2 products.

Products include Atlassian Jira, Atlassian Jira Software Data Center.

How do I fix CVE-2020-14172?

No fix has been published for CVE-2020-14172 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2020-14172 being exploited?

There is no known exploitation of CVE-2020-14172 in the wild and no public exploit code.

All Atlassian Jira vulnerabilities

Sources

Also known as GHSA-gq92-wxjv-qq7g.

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