82 lines
2.8 KiB
XML
82 lines
2.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200602-11">
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<title>OpenSSH, Dropbear: Insecure use of system() call</title>
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<synopsis>
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A flaw in OpenSSH and Dropbear allows local users to elevate their
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privileges via scp.
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</synopsis>
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<product type="ebuild">OpenSSH</product>
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<announced>February 20, 2006</announced>
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<revised>February 20, 2006: 01</revised>
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<bug>119232</bug>
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<access>local</access>
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<affected>
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<package name="net-misc/openssh" auto="yes" arch="*">
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<unaffected range="ge">4.2_p1-r1</unaffected>
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<vulnerable range="lt">4.2_p1-r1</vulnerable>
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</package>
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<package name="net-misc/dropbear" auto="yes" arch="*">
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<unaffected range="ge">0.47-r1</unaffected>
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<vulnerable range="lt">0.47-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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OpenSSH is a free application suite consisting of server and
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clients that replace tools like telnet, rlogin, rcp and ftp with more
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secure versions offering additional functionality. Dropbear is an SSH
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server and client designed with a small memory footprint that includes
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OpenSSH scp code.
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</p>
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</background>
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<description>
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<p>
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To copy from a local filesystem to another local filesystem, scp
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constructs a command line using 'cp' which is then executed via
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system(). Josh Bressers discovered that special characters are not
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escaped by scp, but are simply passed to the shell.
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</p>
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</description>
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<impact type="low">
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<p>
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By tricking other users or applications to use scp on maliciously
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crafted filenames, a local attacker user can execute arbitrary commands
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with the rights of the user running scp.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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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 OpenSSH users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-misc/openssh-4.2_p1-r1"</code>
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<p>
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All Dropbear users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-misc/dropbear-0.47-r1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0225">CVE-2006-0225</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 06 Feb 2006 20:22:40 +0000">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="Tue, 07 Feb 2006 06:29:22 +0000">
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frilled
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 20 Feb 2006 20:03:36 +0000">
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koon
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</metadata>
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</glsa>
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