drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Unsichere Verwendung von temporären Dateien in esearch
Name: |
Unsichere Verwendung von temporären Dateien in esearch
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ID: |
200407-01 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 2. Juli 2004, 13:00 |
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Referenzen: |
Keine Angabe |
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Applikationen: |
Esearch |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Esearch: Insecure temp file handling Date: July 01, 2004 Bugs: #55424 ID: 200407-01
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Synopsis ========
The eupdatedb utility in esearch creates a file in /tmp without first checking for symlinks. This makes it possible for any user to create arbitrary files.
Background ==========
Esearch is a replacement for the Portage command "emerge search". It uses an index to speed up searching of the Portage tree.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-portage/esearch <= 0.6.1 >= 0.6.2
Description ===========
The eupdatedb utility uses a temporary file (/tmp/esearchdb.py.tmp) to indicate that the eupdatedb process is running. When run, eupdatedb checks to see if this file exists, but it does not check to see if it is a broken symlink. In the event that the file is a broken symlink, the script will create the file pointed to by the symlink, instead of printing an error and exiting.
Impact ======
An attacker could create a symlink from /tmp/esearchdb.py.tmp to a nonexistent file (such as /etc/nologin), and the file will be created the next time esearchdb is run.
Workaround ==========
There is no known workaround at this time. All users should upgrade to the latest available version of esearch.
Resolution ==========
All users should upgrade to the latest available version of esearch, as follows:
# emerge sync
# emerge -pv ">=app-portage/esearch-0.6.2" # emerge ">=app-portage/esearch-0.6.2"
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-01.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 Technologies, 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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