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Gentoo Linux Security Advisory GLSA 200612-15 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: McAfee VirusScan: Insecure DT_RPATH |
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Date: December 14, 2006 |
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Bugs: #156989 |
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ID: 200612-15 |
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Synopsis |
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======== |
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|
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McAfee VirusScan for Linux is distributed with an insecure DT_RPATH, |
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potentially allowing a remote attacker to execute arbitrary code. |
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Background |
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========== |
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|
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McAfee VirusScan for Linux is a commercial antivirus solution for |
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Linux. |
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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 app-antivirus/vlnx <= 4510e Vulnerable! |
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------------------------------------------------------------------- |
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NOTE: Certain packages are still vulnerable. Users should migrate |
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to another package if one is available or wait for the |
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existing packages to be marked stable by their |
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architecture maintainers. |
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Description |
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=========== |
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|
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Jakub Moc of Gentoo Linux discovered that McAfee VirusScan was |
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distributed with an insecure DT_RPATH which included the current |
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working directory, rather than $ORIGIN which was probably intended. |
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|
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Impact |
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====== |
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|
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An attacker could entice a VirusScan user to scan an arbitrary file and |
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execute arbitrary code with the privileges of the VirusScan user by |
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tricking the dynamic loader into loading an untrusted ELF DSO. An |
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automated system, such as a mail scanner, may be subverted to execute |
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arbitrary code with the privileges of the process invoking VirusScan. |
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Workaround |
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========== |
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|
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Do not scan files or execute VirusScan from an untrusted working |
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directory. |
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Resolution |
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========== |
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As VirusScan verifies that it has not been modified before executing, |
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it is not possible to correct the DT_RPATH. Furthermore, this would |
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violate the license that VirusScan is distributed under. For this |
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reason, the package has been masked in Portage pending the resolution |
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of this issue. |
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|
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# emerge --ask --verbose --unmerge "app-antivirus/vlnx" |
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|
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References |
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========== |
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[ 1 ] CVE-2006-6474 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6474 |
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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-200612-15.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 2006 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/2.5 |
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