Arbitrary Code Execution in subversion
Summary
DLA-1052-1: subversion - security update. Affects subversion versions < 1.6.17dfsg-4+deb7u12. Fixed in 1.6.17dfsg-4+deb7u12. How to fix ↓
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Background
Subversion is a popular revision control system used for managing and tracking changes to files and directories. It provides a centralized repository for version control and supports various protocols, including "svn+ssh" for secure communication. However, a vulnerability has been discovered in subversion that allows for arbitrary code execution via malicious "svn+ssh" URLs in "svn:externals" and "svn:sync-from-url".
Vulnerability Detail
The vulnerability in subversion arises from a failure to properly validate and sanitize user-supplied input in "svn:externals" and "svn:sync-from-url" properties. An attacker can exploit this by crafting a malicious "svn+ssh" URL that, when processed by subversion, executes arbitrary code on the target system. This can lead to unauthorized access, data leakage, or even complete compromise of the affected system.
How To Fix
Minimum fixed version
1.6.17dfsg-4+deb7u12
This is the first release that contains the fix.
sudo apt-get install --only-upgrade subversionTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to update the subversion package to the fixed version as soon as possible.
Conclusion
The vulnerability in subversion allows for arbitrary code execution through malicious "svn+ssh" URLs. To mitigate this risk, it is crucial to update the subversion package to version 1.6.17dfsg-4+deb7u12 or later. For further assistance and support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for subversion →
FAQ
Subversion is a revision control system used for tracking changes to files and directories. It provides a centralized repository for version control and supports various protocols.
The vulnerability allows for arbitrary code execution, which can lead to unauthorized access, data leakage, or complete compromise of the affected system.
To fix this vulnerability, you need to upgrade the subversion package to version 1.6.17dfsg-4+deb7u12 or later.
No, there is no known workaround for this vulnerability. Updating the subversion package is the only solution.
You can find more information about this vulnerability in the Debian Security Advisory DLA-1052-1.
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