| <?xml version="1.0" encoding="utf-8"?> |
| <?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> |
| <?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200504-12"> |
| <title>rsnapshot: Local privilege escalation</title> |
| <synopsis> |
| rsnapshot allows a local user to take ownership of local files, resulting |
| in privilege escalation. |
| </synopsis> |
| <product type="ebuild">rsnapshot</product> |
| <announced>April 13, 2005</announced> |
| <revised>December 30, 2007: 05</revised> |
| <bug>88681</bug> |
| <access>local</access> |
| <affected> |
| <package name="app-backup/rsnapshot" auto="yes" arch="*"> |
| <unaffected range="ge">1.2.1</unaffected> |
| <unaffected range="rge">1.1.7</unaffected> |
| <vulnerable range="lt">1.2.1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| rsnapshot is a filesystem snapshot utility based on rsync, allowing |
| local and remote systems backups. |
| </p> |
| </background> |
| <description> |
| <p> |
| The copy_symlink() subroutine in rsnapshot follows symlinks when |
| changing file ownership, instead of changing the ownership of the |
| symlink itself. |
| </p> |
| </description> |
| <impact type="high"> |
| <p> |
| Under certain circumstances, local attackers can exploit this |
| vulnerability to take ownership of arbitrary files, resulting in local |
| privilege escalation. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| The copy_symlink() subroutine is not called if the cmd_cp parameter has |
| been enabled. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All rsnapshot users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose app-backup/rsnapshot</code> |
| </resolution> |
| <references> |
| <uri link="http://www.rsnapshot.org/security/2005/001.html">rsnapshot Security Advisory 001</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1064">CVE-2005-1064</uri> |
| </references> |
| <metadata tag="requester" timestamp="Mon, 11 Apr 2005 07:57:07 +0000"> |
| koon |
| </metadata> |
| <metadata tag="bugReady" timestamp="Mon, 11 Apr 2005 21:22:40 +0000"> |
| lewk |
| </metadata> |
| <metadata tag="submitter" timestamp="Wed, 13 Apr 2005 08:59:16 +0000"> |
| koon |
| </metadata> |
| </glsa> |