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[HP-UX] Schwachstellen im Apache Webserver - HPSBUX02172 - SSRT061269
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Liebe Kolleginnen und Kollegen,
soeben erreichte uns das nachfolgende Bulletin der HP SupportLine. Wir
geben diese Informationen unveraendert an Sie weiter.
CVE-2006-3747 - Buffer Overflow im Rewrite Modul mod_rewrite des Apache
Webservers
Im Rewrite Modul mod_rewrite des Apache Webservers kann ein Buffer
Overflow um ein Byte im Stack Segment (off-by-one) ausgeloest werden.
Ein entfernter Angreifer kann diese Schwachstelle unter Umstaenden
ausnutzen, um beliebige Befehle mit den Rechten des Webservers
auszufuehren. Voraussetzungen sind, dass mod_rewrite verwendet wird,
eine RewriteRule verwendet wird, wobei der Benutzer den Anfang der
umgeschriebenen URL beeinflussen kann, und die Regel keine der Flags
Forbidden (F), Gone (G) oder NoEscape (NE) beinhaltet.
CVE-2005-3352 - Cross Site Scripting Schwachstelle in Apache / mod_imap
Es existiert eine Cross Site Scripting Schwachstelle im Modul mod_imap
des Apache Webservers. In mod_imap wird die "Referer" Direktive
innerhalb einer Image Map nicht korrekt ausgewertet. Ein entfernter
Angreifer kann dadurch Skript-Code im Context der betroffenen Website
ausfuehren. Fuer einen Angriff muss der Benutzer ein entsprechend
manipuliertes HTML-Dokument mit einem Webbrowser anzeigen.
CVE-2005-3357 - Null Pointer Dereferenzierung in Apache mod_ssl
In mod_ssl existiert eine Schwachstelle, die bei Verwendung der Worker
MPM bei Virtual Hosts mit ACLs und eines selbsterstellten
Fehler-400-Dokumentes auftritt. Ein entfernter Angreifer kann durch
Senden eines speziell konstruierten Requests eine Null Pointer
Dereferenzierung ausloesen, die zum Absturz des Servers fuehrt (Denial
of Service).
Betroffen sind die folgenden Software Pakete und Plattformen:
VirtualVault 4.7 mit Apache 2.x
HP Webproxy A.02.10 (Apache 2.x)
HP-UX B.11.04
Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.
Hersteller Advisory:
http://www5.itrc.hp.com/service/cki/docDisplay.do?docId=c00797078
(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.
Mit freundlichen Gruessen,
Jan Kohlrausch (CSIRT), DFN-CERT Services GmbH
Web: https://www.dfn-cert.de/, Phone: +49-40-808077-555
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SUPPORT COMMUNICATION - SECURITY BULLETIN
Document ID: c00797078
Version: 1
HPSBUX02172 SSRT061269 rev.1 - HP-UX VirtualVault running Apache Remote Execution of Arbitrary Code, Denial of Service (DoS), and Unauthorized Access
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.
Release Date: 2006-10-31
Last Updated: 2006-10-31
Potential Security Impact: Remote Execution of Arbitrary Code, Denial of Service (DoS), and Unauthorized Access
Source: Hewlett-Packard Company, HP Software Security Response Team
VULNERABILITY SUMMARY
Potential security vulnerabilities have been identified with Apache running on HP-UX VirtualVault. These vulnerabilities could be exploited remotely to allow execution of arbitrary code, Denial of Service (DoS), or unauthorized access.
References: CVE-2006-3747, CVE-2005-3352, CVE-2005-3357
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.04 with VirtualVault running Apache 2.x Web Server
BACKGROUND
AFFECTED VERSIONS
HP-UX B.11.04 VirtualVault 4.7 running Apache 2.x
=====================================
VaultWS.WS-CORE
action: install PHSS_35436 or subsequent
HP-UX B.11.04 HP Webproxy A.02.10 (Apache 2.x)
=====================================
HP_Webproxy.HPWEB-PX-CORE
action: install PHSS_35437 or subsequent
END AFFECTED VERSIONS
RESOLUTION
For B.11.04 HP has made the following patches available to resolve the issue.
These patches are available from: http://itrc.hp.com
PHSS_35436 VirtualVault 4.7 OWS (Apache 2.x) update
PHSS_35437 WebProxy Server 2.1 (Apache 2.x) update
MANUAL ACTIONS: No
PRODUCT SPECIFIC INFORMATION
HP-UX Security Patch Check: Security Patch Check revision B.02.00 analyzes all HP-issued Security Bulletins to provide a subset of recommended actions that potentially affect a specific HP-UX system. For more information: http://software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=B6834AA
HISTORY:
Version 1 (rev.1) - 31 October 2006 Initial Release
Third Party Security Patches: Third Party security patches which are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy.
Support: For further information, contact normal HP Services
support channel.
Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@xxxxxxx It is
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* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters of the
Bulletin number in the title:
GN = HP General SW,
MA = HP Management Agents,
MI = Misc. 3rd party SW,
MP = HP MPE/iX,
NS = HP NonStop Servers,
OV = HP OpenVMS,
PI = HP Printing & Imaging,
ST = HP Storage SW,
TL = HP Trusted Linux,
TU = HP Tru64 UNIX,
UX = HP-UX,
VV = HP Virtual Vault
System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.
"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products the
important security information contained in this Bulletin. HP
recommends that all users determine the applicability of this
information to their individual situations and take appropriate
action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently, HP
will not be responsible for any damages resulting from user's use
or disregard of the information provided in this Bulletin. To the
extent permitted by law, HP disclaims all warranties, either
express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement."
(c)Copyright 2006 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
provided is provided "as is" without warranty of any kind. To the
extent permitted by law, neither HP nor its affiliates,
subcontractors or suppliers will be liable for incidental, special
or consequential damages including downtime cost; lost profits;
damages relating to the procurement of substitute products or
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The information in this document is subject to change without
notice. Hewlett-Packard Company and the names of Hewlett-Packard
products referenced herein are trademarks of Hewlett-Packard
Company in the United States and other countries. Other product
and company names mentioned herein may be trademarks of their
respective owners.
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