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Gentoo Linux Security Advisory GLSA 200801-11 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: CherryPy: Directory traversal vulnerability |
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Date: January 27, 2008 |
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Bugs: #204829 |
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ID: 200801-11 |
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Synopsis |
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======== |
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|
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CherryPy is vulnerable to a directory traversal that could allow |
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attackers to read and write arbitrary files. |
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Background |
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========== |
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CherryPy is a Python-based, object-oriented web development framework. |
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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 dev-python/cherrypy < 3.0.2-r1 *>= 2.2.1-r2 |
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>= 3.0.2-r1 |
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|
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Description |
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=========== |
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|
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CherryPy does not sanitize the session id, provided as a cookie value, |
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in the FileSession._get_file_path() function before using it as part of |
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the file name. |
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Impact |
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====== |
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|
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A remote attacker could exploit this vulnerability to read and possibly |
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write arbitrary files on the web server, or to hijack valid sessions, |
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by providing a specially crafted session id. This only affects |
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applications using file-based sessions. |
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Workaround |
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========== |
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Disable the "FileSession" functionality by using "PostgresqlSession" or |
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"RamSession" session management in your CherryPy application. |
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Resolution |
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========== |
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All CherryPy 2.2 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-python/cherrypy-2.2.1-r2" |
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All CherryPy 3.0 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-python/cherrypy-3.0.2-r1" |
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|
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References |
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========== |
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[ 1 ] CVE-2008-0252 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0252 |
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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-200801-11.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 2008 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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