usd-2019-0019 | Bitbucket/v5.10.1

Advisory ID: usd-2019-0019
CVE Number: N/A
Affected Product: Bitbucket
Affected Version: v5.10.1
Vulnerability Type: File Enumeration
Security Risk: Low
Vendor URL:
Vendor Status: Not fixed


The logfile analyzer inside the admin menu can be used to enumarate existing file names inside the operating system.

Proof of Concept

If one specifies a path to a non existing file, the application displays a different error message as if the path would lead to an existing file.
This was tested with the paths „/etc/passwd“ and „/non/existend“.


Analysing logfiles should be limited to a specified part of the directory system.


  • 2019-03-28 Vulnerability securily submitted to
  • 2019-04-11 Second contact attempt via contact formular
  • 2019-05-23 Atlassian Security Team agreed with the publishment of the advisory
  • 2019-07-31 Security advisory released


This security vulnerabilities were found by Tobias Neitzel and Julian Frey of usd AG.


In order to protect businesses against hackers and criminals, we always have to keep our skills and knowledge up to date. Thus, security research is just as important for our work as is building up a security community to promote the exchange of knowledge. After all, more security can only be achieved if many individuals take on the task.

Our CST Academy and our usd HeroLab are essential parts of our security mission. We share the knowledge we gain in our practical work and our research through training courses and publications. In this context, the usd HeroLab publishes a series of papers on new vulnerabilities and current security issues.

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to usd AG

In accordance with usd AG’s Responsible Disclosure Policy, all vendors have been notified of the existence of these vulnerabilities.


The information provided in this security advisory is provided „as is“ and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible.