CVE-2019-15012 Path traversal in Bitbucket Data Center

High 8.8 Published Updated

Remote attackers with write permissions can exploit path traversal in the edit-file endpoint to write arbitrary files, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-15012?

CVE-2019-15012 is a high-severity path traversal vulnerability in Atlassian Bitbucket Data Center, published on 15 Jan 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Bitbucket Server and Bitbucket Data Center from version 4.13. before 5.16.11, from version 6.0.0 before 6.0.11, from version 6.1.0 before 6.1.9, from version 6.2.0 before 6.2.7, from version 6.3.0 before 6.3.6, from version 6.4.0 before 6.4.4, from version 6.5.0 before 6.5.3, from version 6.6.0 before 6.6.3, from version 6.7.0 before 6.7.3, from version 6.8.0 before 6.8.2, from version 6.9.0 before 6.9.1 had a Remote Code Execution vulnerability via the edit-file request. A remote attacker with write permission on a repository can write to any arbitrary file to the victims Bitbucket Server or Bitbucket Data Center instance using the edit-file endpoint, if the user has Bitbucket Server or Bitbucket Data Center running, and has the permission to write the file at that destination. In some cases, this can result in execution of arbitrary code by the victims Bitbucket Server or Bitbucket Data Center instance.

Weakness: CWE-269

Which versions are affected by CVE-2019-15012?

It affects 1 product.

Products include Atlassian Bitbucket.

How do I fix CVE-2019-15012?

No fix has been published for CVE-2019-15012 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-2019-15012 being exploited?

There is no known exploitation of CVE-2019-15012 in the wild and no public exploit code.

Sources

Also known as GHSA-4hfv-698v-c974.

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