drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Unsichere Verwendung von temporären Dateien in shorewall
Name: |
Unsichere Verwendung von temporären Dateien in shorewall
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ID: |
200407-07 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 9. Juli 2004, 13:00 |
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Referenzen: |
Keine Angabe |
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Applikationen: |
Shoreline Firewall |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Shorewall : Insecure temp file handling Date: July 08, 2004 Bugs: #55675 ID: 200407-07
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Synopsis ========
Shorewall contains a bug in the code handling the creation of temporary files and directories. This can allow a non-root user to overwrite arbitrary system files.
Background ==========
Shorewall is a high level tool for configuring Netfilter, the firewall facility included in the Linux Kernel.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-firewall/shorewall <= 1.4.10c >= 1.4.10f
Description ===========
Shorewall uses temporary files and directories in an insecure manner. A local user could create symbolic links at specific locations, eventually overwriting other files on the filesystem with the rights of the shorewall process.
Impact ======
An attacker could exploit this vulnerability to overwrite arbitrary system files with root privileges, resulting in Denial of Service or further exploitation.
Workaround ==========
There is no known workaround at this time. All users should upgrade to the latest available version of Shorewall.
Resolution ==========
All users should upgrade to the latest available version of Shorewall, as follows:
# emerge sync
# emerge -pv ">=net-firewall/shorewall-1.4.10f" # emerge ">=net-firewall/shorewall-1.4.10f"
References ==========
[ 1 ] Shorewall Announcement
http://lists.shorewall.net/pipermail/shorewall-announce/2004-June/000385.html
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-07.xml
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License =======
Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
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