ESB-2017.2264 - [Win][OSX] Atlassian SourceTree: Execute arbitrary code/commands - Remote with user interaction 2017-09-07

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2264
                  SourceTree Security Advisory 2017-08-11
                             7 September 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Atlassian SourceTree
Publisher:         Atlassian
Operating System:  OS X
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000117 CVE-2017-1000116 CVE-2017-1000115
                   CVE-2017-9800  

Reference:         ESB-2017.2073
                   ESB-2017.2037
                   ESB-2017.2024

Original Bulletin: 
   https://confluence.atlassian.com/x/c-mdNw

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This email refers to the advisory found at
https://confluence.atlassian.com/x/c-mdNw .


CVE ID:

* CVE-2017-1000117 - Git.
* CVE-2017-1000115 - Mercurial.
* CVE-2017-1000116 - Mercurial.
* CVE-2017-9800 - Subversion.


Product: SourceTree.

Affected SourceTree product versions:

* SourceTree for macOS 1.0b2 <= version < 2.6.1
* SourceTree for Windows 0.5.1.0 <= version < 2.1.10


Fixed SourceTree product versions:

* Versions of SourceTree for macOS, equal to and above 2.6.1 contain a
fix for this issue.
* Versions of SourceTree for Windows, equal to and above 2.1.10
contain a fix for this issue.


Summary:
This advisory discloses critical severity security vulnerabilities
which affect SourceTree for macOS and SourceTree for Windows. Versions
of SourceTree for macOS starting with 1.0b2 before version 2.6.1 and
versions of SourceTree for Windows starting with 0.5.1.0 before
version 2.1.10 are affected by this vulnerability.


Customers who have upgraded SourceTree for macOS to version 2.6.1 are
not affected.
Customers who have upgraded SourceTree for Windows to version 2.1.10
are not affected.

Customers who have downloaded and installed SourceTree for macOS
starting with 1.0b2 before version 2.6.1 or who have downloaded and
installed SourceTree for Windows starting with 0.5.1.0 before version
2.1.10 please upgrade your SourceTree for macOS or SourceTree for
Windows installations immediately to fix the vulnerabilities mentioned
in this advisory.

SourceTree for macOS and Windows - Remote Code Execution via Git and
Mercurial - Multiple CVEs

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:

SourceTree for macOS and Windows are affected by vulnerabilities found
in the Git and Mercurial software. This vulnerability can be triggered
through a malicious repository when it is checked out using
SourceTree. From version 1.4.0 of SourceTree for macOS and 0.8.4b of
SourceTree for Windows, this vulnerability can be triggered from a
webpage through the use of the SourceTree URI handler.
Versions of SourceTree for macOS starting with 1.0b2 before version
2.6.1 and versions of SourceTree for Windows starting with 0.5.1.0
before version 2.1.10 are affected by this vulnerability. This issue
can be tracked at: https://jira.atlassian.com/browse/SRCTREE-4904 and
for Windows at https://jira.atlassian.com/browse/SRCTREEWIN-7663.


Remediation:

Upgrade SourceTree for macOS to version 2.6.1 or higher.  Please note
that since SourceTree for Mac 2.5.0 OSX 10.11 or later is required.
Upgrade SourceTree for Windows to version 2.1.10 or higher.

You can download the latest version of SourceTree from
https://www.sourcetreeapp.com/ .


Support:
Atlassian supports SourceTree through the Atlassian Community. If you
have questions or concerns regarding this advisory, go to
https://community.atlassian.com/t5/SourceTree/ct-p/sourcetree .
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