CVE-2019-20097 Command injection in Bitbucket Data Center
Remote attackers with push permissions can execute arbitrary commands on Bitbucket Server via a crafted post-receive hook file.
- 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-2019-20097?
CVE-2019-20097 is a high-severity command injection 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 versions starting from 1.0.0 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 post-receive hook. A remote attacker with permission to clone and push files to a repository on the victim's Bitbucket Server or Bitbucket Data Center instance, can exploit this vulnerability to execute arbitrary commands on the Bitbucket Server or Bitbucket Data Center systems, using a file with specially crafted content.
Which versions are affected by CVE-2019-20097?
It affects 1 product.
Products include Atlassian Bitbucket.
How do I fix CVE-2019-20097?
No fix has been published for CVE-2019-20097 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2019-20097 being exploited?
There is no known exploitation of CVE-2019-20097 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Bitbucket Data Center
Sources
Also known as GHSA-26mq-j972-xv5x.