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Gentoo Linux Security Advisory GLSA 200701-28 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: thttpd: Unauthenticated remote file access |
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Date: January 31, 2007 |
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Bugs: #142047 |
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ID: 200701-28 |
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Synopsis |
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======== |
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|
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The default configuration of the Gentoo thttpd package potentially |
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allows unauthenticated access to system files when used with newer |
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versions of baselayout. |
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Background |
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========== |
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|
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thttpd is a webserver designed to be simple, small, and fast. |
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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 www-servers/thttpd < 2.25b-r6 >= 2.25b-r6 |
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Description |
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=========== |
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|
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thttpd is vulnerable to an underlying change made to the |
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start-stop-daemon command in the current stable Gentoo baselayout |
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package (version 1.12.6). In the new version, the start-stop-daemon |
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command performs a "chdir /" command just before starting the thttpd |
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process. In the Gentoo default configuration, this causes thttpd to |
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start with the document root set to "/", the sytem root directory. |
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Impact |
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====== |
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|
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When thttpd starts with the document root set to the system root |
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directory, all files on the system that are readable by the thttpd |
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process can be remotely accessed by unauthenticated users. |
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Workaround |
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========== |
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Alter the THTTPD_OPTS variable in /etc/conf.d/thttpd to include the |
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"-d" option to specify the document root. Alternatively, modify the |
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THTTPD_OPTS variable in /etc/conf.d/thttpd to specify a thttpd.conf |
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file using the "-C" option, and then configure the "dir=" directive in |
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that thttpd.conf file. |
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Resolution |
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========== |
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All thttpd users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-servers/thttpd-2.25b-r5" |
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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-200701-28.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 2007 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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