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: https://www.atlassian.com
Vendor Status: Not fixed

Description

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“.

Fix

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

Timeline

  • 2019-03-28 Vulnerability securily submitted to security@atlassian.com
  • 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

Credits

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

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

Disclaimer

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.