usd-2019-0019 | Bitbucket/v5.10.1
Advisory ID: usd-2019-0017
CVE number: N/A
Affected Version: v5.10.1
Vulnerability Type: File Enumeration
First Pubslished: 2019-07-31
Last Update: 2019-05-27
Security Risk: Low
Vendor URL: https://www.atlassian.com/
Vendor Status: Not fixed
Advisory Status: Published
Access control, sometimes called authorization, is how a web application grants access to content and functions to some users and not others. These checks are performed after authentication and govern what ‘authorized’ users are allowed to do. Access control sounds like a simple task. However, this is insidiously difficult to implement correctly. A web application’s access control model is closely tied to the content and functions that the site provides. In addition, the users may fall into a number of groups or roles with different abilities or privileges.
The logfile analyzer inside the admin menu can be used to enumarate existing file names inside the operating system. 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 email@example.com
- 2019-04-11 Second contact attempt via contact formular
- 2019-05-23 Atlassian Security Team agreed with the publishment of the advisory
This security vulnerabilities were found by Tobias Neitzel and Julian Frey of usd AG.
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