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Gentoo Linux Security Advisory GLSA 200407-20 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: Subversion: Vulnerability in mod_authz_svn |
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Date: July 26, 2004 |
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Bugs: #57747 |
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ID: 200407-20 |
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Synopsis |
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======== |
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|
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Users with write access to parts of a Subversion repository may bypass |
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read restrictions in mod_authz_svn and read any part of the repository |
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they wish. |
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Background |
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========== |
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|
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Subversion is an advanced version control system, similar to CVS, which |
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supports additional functionality such as the ability to move, copy and |
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delete files and directories. A Subversion server may be run as an |
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Apache module, a standalone server (svnserve), or on-demand over ssh (a |
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la CVS' ":ext:" protocol). The mod_authz_svn Apache module works with |
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Subversion in Apache to limit access to parts of Subversion |
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repositories based on policy set by the administrator. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-util/subversion <= 1.0.4-r1 >= 1.0.6 |
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|
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Description |
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=========== |
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|
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Users with write access to part of a Subversion repository may bypass |
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read restrictions on any part of that repository. This can be done |
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using an "svn copy" command to copy the portion of a repository the |
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user wishes to read into an area where they have write access. |
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Since copies are versioned, any such copy attempts will be readily |
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apparent. |
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Impact |
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====== |
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|
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This is a low-risk vulnerability. It affects only users of Subversion |
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who are running servers inside Apache and using mod_authz_svn. |
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Additionally, this vulnerability may be exploited only by users with |
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write access to some portion of a repository. |
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Workaround |
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========== |
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Keep sensitive content separated into different Subversion |
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repositories, or disable the Apache Subversion server and use svnserve |
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instead. |
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Resolution |
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========== |
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All Subversion users should upgrade to the latest available version: |
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# emerge sync |
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# emerge -pv ">=dev-util/subversion-1.0.6" |
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# emerve ">=dev-util/subversion-1.0.6" |
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|
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References |
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========== |
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[ 1 ] ChangeLog for Subversion 1.0.6 |
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http://svn.collab.net/repos/svn/tags/1.0.6/CHANGES |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200407-20.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/1.0 |
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