69 lines
2.4 KiB
XML
69 lines
2.4 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200407-10">
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<title>rsync: Directory traversal in rsync daemon</title>
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<synopsis>
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Under specific conditions, the rsync daemon is vulnerable to a directory
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traversal allowing to write files outside a sync module.
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</synopsis>
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<product type="ebuild">rsync</product>
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<announced>July 12, 2004</announced>
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<revised>July 12, 2004: 01</revised>
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<bug>49534</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/rsync" auto="yes" arch="*">
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<unaffected range="ge">2.6.0-r2</unaffected>
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<vulnerable range="le">2.6.0-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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rsync is a utility that provides fast incremental file transfers. It is
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used to efficiently synchronize files between hosts and is used by emerge
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to fetch Gentoo's Portage tree. rsyncd is the rsync daemon, which listens
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to connections from rsync clients.
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</p>
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</background>
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<description>
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<p>
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When rsyncd is used without chroot ("use chroot = false" in the rsyncd.conf
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file), the paths sent by the client are not checked thoroughly enough. If
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rsyncd is used with read-write permissions ("read only = false"), this
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vulnerability can be used to write files anywhere with the rights of the
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rsyncd daemon. With default Gentoo installations, rsyncd runs in a chroot,
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without write permissions and with the rights of the "nobody" user.
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</p>
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</description>
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<impact type="normal">
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<p>
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On affected configurations and if the rsync daemon runs under a privileged
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user, a remote client can exploit this vulnerability to completely
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compromise the host.
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</p>
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</impact>
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<workaround>
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<p>
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You should never set the rsync daemon to run with "use chroot = false". If
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for some reason you have to run rsyncd without a chroot, then you should
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not set "read only = false".
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</p>
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</workaround>
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<resolution>
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<p>
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All users should update to the latest version of the rsync package.
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=net-misc/rsync-2.6.0-r2"
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# emerge ">=net-misc/rsync-2.6.0-r2"</code>
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</resolution>
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<references>
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<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0426">CAN-2004-0426</uri>
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</references>
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<metadata tag="submitter">
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koon
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</metadata>
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</glsa>
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