Apache-based Web Server on HP-UX mod_ssl, proxy_http, Remote Execution of Arbitrary Code, Denial of Service (DoS), and Unauthori

2006.03.20
Risk: Medium
Local: No
Remote: Yes
CWE: N/A

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c00555254 Version: 2 HPSBUX02074 SSRT051251 rev.2 - Apache-based Web Server on HP-UX mod_ssl, proxy_http, 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: 2006-02-27 Last Updated: 2006-03-15 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. These vulnerability could be exploited remotely to allow execution of arbitrary code, Denial of Service (DoS), or unauthorized access. References: .CVE-2005-2491, CVE-2005-1268, CVE-2005-2728, CVE-2005-2088 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.00, B.11.11, B.11.23 running Apache-based Web Server prior to v.2.0.55. -> HP-UX B.11.04 with Virtualvault 4.7 running Apache 2.x Web -> Server. BACKGROUND The following potential security vulnerabilities are resolved in the software updates listed below: CVE-2005-2088 (cve.mitre.org): HTTP Request Smuggling. CVE-2005-2491 (cve.mitre.org): Integer overflow in pcre_compile.c. CVE-2005-2728 (cve.mitre.org): Remote denial of service. CVE-2005-1268 (cve.mitre.org): Remote denial of service. AFFECTED VERSIONS -> HP-UX B.11.04 Virtualvault A.04.70 (Apache 2.x) -> ============================== -> VaultWS.WS-CORE -> action: install PHSS_34123 or subsequent -> HP-UX B.11.04 HP Webproxy A.02.10 (Apache 2.x) -> ============================== -> HP_Webproxy.HPWEB-PX-CORE -> action: install PHSS_34163 or subsequent For IPv4: HP-UX B.11.00 HP-UX B.11.11 ============= hpuxwsAPACHE action: install revision A.2.0.55.00 or subsequent For IPv6: HP-UX B.11.11 ============= hpuxwsAPACHE,revision=B.1.0.00.01 hpuxwsAPACHE,revision=B.1.0.07.01 hpuxwsAPACHE,revision=B.1.0.08.01 hpuxwsAPACHE,revision=B.1.0.09.01 hpuxwsAPACHE,revision=B.1.0.10.01 hpuxwsAPACHE,revision=B.2.0.48.00 hpuxwsAPACHE,revision=B.2.0.49.00 hpuxwsAPACHE,revision=B.2.0.50.00 hpuxwsAPACHE,revision=B.2.0.51.00 hpuxwsAPACHE,revision=B.2.0.52.00 hpuxwsAPACHE,revision=B.2.0.53.00 hpuxwsAPACHE,revision=B.2.0.54.00 action: install revision B.2.0.55.00 or subsequent HP-UX B.11.23 ============= hpuxwsAPACHE action: install revision B.2.0.55.00 or subsequent END AFFECTED VERSIONS RESOLUTION HP has made the following patches and software updates available to resolve the issue. -> For B.11.04 HP has made the following patch available: -> PHSS_34123 Virtualvault 4.7 OWS (Apache 2.x) update -> PHSS_34163 Webproxy server 2.1 (Apache 2.x) update Software updates for the Apache-based Web Server are available from: http://h20293.www2.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=HPUXWSSUITE HP-UX B.11.00, B.11.11 and HP-UX B.11.23 require the Apache-based Web Server v.2.0.55.00 or subsequent. Apache Update Procedure Check for Apache Installation ---------------------------- To determine if the Apache web server from HP is installed on your system, use Software Distributor's swlist command. All three revisions of the product may co-exist on a single system. For example, the results of the command swlist -l product | grep -i apache hpuxwsAPACHE B.2.0.54.00 HP-UX Apache-based Web Server Stop Apache ------------- Before updating, make sure to stop any previous Apache binary. Otherwise, the previous binary will continue running, preventing the new one from starting, although the installation would be successful. After determining which Apache is installed, stop Apache with the following commands: for hpuxwsAPACHE: /opt/hpws/apache[32]/bin/apachectl stop Download and Install Apache ----------------------------- Download Apache from Software Depot: http://h20293.www2.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=HPUXWSSUITE Verify successful download by comparing the cksum with the value specified on the installation web page. Use SD to swinstall the depot. Installation of this new revision of HP Apache over an existing HP Apache installation is supported, while installation over a non-HP Apache is NOT supported. Removing Apache Installation ---------------------------- If you prefer to remove Apache from your system instead of installing a newer revision to resolve the security problem, use both Software Distributor's "swremove" command and also "rm -rf" the home location as specified in the rc.config.d file "HOME" variables. %ls /etc/rc.config.d | grep apache hpapache2conf hpws_apache[32]conf MANUAL ACTIONS: Yes - Update plus other actions Install the revision of the product. 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: rev.0 - 15 November 2005 Initial Release Version: 1 (rev.1) Skipped for formatting reasons Version: 2 (rev.2) - 15 March 2006 included B.11.04 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 (at) hp (dot) com. [email concealed] It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information. To get the security-alert PGP key, please send an e-mail message as follows: To: security-alert (at) hp (dot) com [email concealed] Subject: get key Subscribe: To initiate a subscription to receive future HP Security Bulletins via Email: http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA& langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC On the web page: ITRC security bulletins and patch sign-up Under Step1: your ITRC security bulletins and patches - check ALL categories for which alerts are required and continue. Under Step2: your ITRC operating systems - verify your operating system selections are checked and save. To update an existing subscription: http://h30046.www3.hp.com/subSignIn.php Log in on the web page: Subscriber's choice for Business: sign-in. On the web page: Subscriber's Choice: your profile summary - use Edit Profile to update appropriate sections. To review previously published Security Bulletins visit: http://www.itrc.hp.com/service/cki/secBullArchive.do * 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 services; or damages for loss of data, or software restoration. 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. -----BEGIN PGP SIGNATURE----- Version: PGP 8.1 iQA/AwUBRBqux+AfOvwtKn1ZEQJA3wCeIkmg3Jsh6buNWiTnLEQJHmX6qpAAoOxt 0oFQMMwWEdfTYZ1lAL3UE1C0 =2DdS -----END PGP SIGNATURE-----


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