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Gentoo Linux Security Advisory GLSA 200802-06 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: scponly: Multiple vulnerabilities |
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Date: February 12, 2008 |
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Bugs: #201726, #203099 |
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ID: 200802-06 |
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|
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in scponly allow authenticated users to bypass |
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security restrictions. |
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|
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Background |
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========== |
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|
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scponly is a shell for restricting user access to file transfer only |
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using sftp and scp. |
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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 net-misc/scponly < 4.8 >= 4.8 |
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|
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Description |
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=========== |
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|
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Florian Weimer from Debian discovered that scponly does not filter the |
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- -o and -F options to the scp executable (CVE-2007-6415). Joachim |
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Breitner reported that Subversion and rsync support invokes subcommands |
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in an insecure manner (CVE-2007-6350). |
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|
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Impact |
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====== |
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|
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A local attacker could exploit these vulnerabilities to elevate |
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privileges and execute arbitrary commands on the vulnerable host. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All scponly users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-misc/scponly-4.8" |
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|
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Due to the design of scponly's Subversion support, security |
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restrictions can still be circumvented. Please read carefully the |
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SECURITY file included in the package. |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-6350 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6350 |
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[ 2 ] CVE-2007-6415 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6415 |
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|
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Availability |
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============ |
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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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|
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http://security.gentoo.org/glsa/glsa-200802-06.xml |
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|
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Concerns? |
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========= |
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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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|
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License |
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======= |
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|
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Copyright 2008 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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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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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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