Sourcetree Security Advisory 2019-06-05
Sourcetree - RCE on Sourcetree for Windows - CVE-2019-11582
| Summary | CVE-2019-11582 - RCE on Sourcetree for Windows |
|---|---|
| Advisory Release Date | 12:00 PM PDT (Pacific Time, -7 hours) |
| Product | Sourcetree for Windows |
Affected Sourcetree for Windows Versions | 0.5a <= version < 3.1.3 |
Fixed Sourcetree for Windows Versions | 3.1.3 |
| CVE ID | CVE-2019-11582 |
Summary of Vulnerability
This advisory discloses a critical severity security vulnerability which was introduced in version 0.5a of Sourcetree for Windows. Versions of Sourcetree for Windows starting with 0.5a before 3.1.3 are affected by this vulnerability.
Customers who have upgraded Sourcetree for Windows to version 3.1.3 are not affected.
Customers who have downloaded and installed Sourcetree for Windows all versions prior to 3.1.3.
Please upgrade your Sourcetree for Windows installations immediately to fix this vulnerability.
Sourcetree - RCE on Sourcetree for Windows - CVE-2019-11582
Severity
Atlassian rates the severity level of this vulnerability as critical, according to the scale published in our Atlassian severity levels. The scale allows us to rank the severity as critical, high, moderate or low.
This is our assessment and you should evaluate its applicability to your own IT environment.
Description
There was a remote code execution vulnerability in Sourcetree for Windows via the URI handlers. A remote, unauthenticated attacker was required to convince a user to interact with a crafted URL in order to exploit the vulnerability. With user interaction, the attacker gained remote code execution on the target system.
All versions of Sourcetree for Windows before version 3.1.3 are affected by this vulnerability. This issue can be tracked here: SRCTREEWIN-11917 - Getting issue details... STATUS
Acknowledgements
Terry Zhang at Tophant
Fix
We have taken the following steps to address this issue:
- Released Sourcetree for Windows version 3.1.3 that contains a fix for this issue.
What You Need to Do
Atlassian recommends that you upgrade to the latest version. For a full description of the latest version of Sourcetree for Windows, see the release notes. Download the latest version of Sourcetree.
Upgrade Sourcetree for Windows to version 3.1.3 or higher.
Mitigation
Atlassian recommends upgrading Sourcetree for Windows to version 3.1.3 or higher. Alternatively, for lower versions, please uncheck the Use this version of Sourcetree for URI association option under Tools > Options.
Support
If you have questions or concerns regarding this advisory, please raise a support request at https://support.atlassian.com/.
References
| Security Bug fix Policy | As per our new policy critical security bug fixes will be back ported in accordance with https://www.atlassian.com/trust/security/bug-fix-policy. We will release new maintenance releases for the versions covered by the policy instead of binary patches. Binary patches are no longer released. |
| Severity Levels for security issues | Atlassian security advisories include a severity level and a CVE identifier. This severity level is based on our self-calculated CVSS score for each specific vulnerability. CVSS is an industry-standard vulnerability metric. You can also learn more about CVSS at FIRST.org. |
| End of Life Policy | Our end of life policy varies for different products. Please refer to our EOL Policy for details. |