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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0503 -- HP Security Bulletin HPSBUX01069 SSRT4789 rev. 0 HP-UX Apache server remote Denial of Service and bypassing access restrictions 10 August 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache Publisher: Hewlett-Packard Operating System: HP-UX 11.04 with Virtualvault 4.7, 4.6, or 4.5 Impact: Denial of Service Reduced Security Access: Remote/Unauthenticated CVE Names: CAN-2003-0987 CAN-2003-0020 CAN-2004-0174 CAN-2003-0993 Ref: ESB-2004.0502 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HP SECURITY BULLETIN HPSBUX01069 REVISION: 0 SSRT4789 rev. 0 HP-UX Apache server remote Denial of Service and bypassing access restrictions ----------------------------------------------------------------- NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact. The information in this Security bulletin should be acted upon as soon as possible. INITIAL RELEASE: 08 August 2004 POTENTIAL SECURITY IMPACT: Remote Denial of Service and bypass of access restrictions. SOURCE: HEWLETT-PACKARD COMPANY HP Software Security Response Team REFERENCES: CAN-2003-0987, CAN-2003-0020, CAN-2004-0174 and CAN-2003-0993. VULNERABILITY SUMMARY: A potential security vulnerability has been identified with HP-UX running Apache where the vulnerability could be exploited remotely to create a Denial of Service (DoS) or to bypass access restrictions. SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.04 with Virtualvault 4.7, Virtualvault 4.6, or Virtualvault 4.5. BACKGROUND: Four potential security vulnerabilities have been reported in Apache HTTP server (http://httpd.apache.org/). The Common Vulnerabilities and Exposures project < http://cve.mitre.org/> has referenced them as the candidates CAN-2003-0987, CAN-2003-0020, CAN-2004-0174, and CAN-2003-0993. 1. mod_digest in Apache 1.3 before 1.3.31 does not properly verify the nonce of a client response by using a AuthNonce secret. 2. Apache 1.3 before 1.3.30 does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into the terminal emulators containing vulnerabilities related to escape sequence handling. 3. Apache 1.3 before 1.3.30, when using multiple listening sockets on certain platforms, allows remote attackers to cause a Denial of Service (blocked new connections) via a "short-lived connection on a rarely-accessed listening socket." 4. mod_access in Apache 1.3 before 1.3.30, when running on big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask. This could allow remote attackers to bypass intended access restrictions. AFFECTED VERSIONS Note: To determine if a system has an affected version, search the output of "swlist -a revision -l fileset" for an affected fileset. Then determine if the recommended patch or update is installed. HP-UX B.11.04 Virtualvault A.04.70 ============================== VaultTS.VV-IWS action: install PHSS_30944 or subsequent VaultWS.WS-CORE action: install PHSS_31058 or subsequent HP-UX B.11.04 Virtualvault A.04.60 ============================== VaultTS.VV-IWS action: install PHSS_30946 or subsequent VaultWS.WS-CORE action: install PHSS_31057 or subsequent HP-UX B.11.04 Virtualvault A.04.50 ============================== VaultTS.VV-IWS action: install PHSS_30647 or subsequent VaultWS.WS-CORE action: install PHSS_30648 or subsequent HP-UX B.11.04 HP Webproxy A.02.10 ============================== HP_Webproxy.HPWEB-PX-CORE action: install PHSS_30950 or subsequent HP-UX B.11.04 HP Webproxy A.02.00 ============================== HP_Webproxy.HPWEB-PX-CORE action: install PHSS_30949 or subsequent END AFFECTED VERSIONS RESOLUTION: HP has made the following patches available: PHSS_30944 Virtualvault 4.7 IWS update PHSS_31058 Virtualvault 4.7 OWS update PHSS_30946 Virtualvault 4.6 IWS update PHSS_31057 Virtualvault 4.6 OWS update PHSS_30647 Virtualvault 4.5 IWS update PHSS_30648 Virtualvault 4.5 OWS update PHSS_30950 Webproxy server 2.1 update PHSS_30949 Webproxy server 2.0 update MANUAL ACTIONS: No BULLETIN REVISION HISTORY: Revision 0 - 5 August 2004 Initial release * The software product category that this Security Bulletin relates to is represented by the 5th and 6th characters of the Bulletin number: GN=General, MA=Management Agents, MI=Misc. 3rd party, MP=HP-MPE/iX, NS=HP NonStop Servers, OV=HP OpenVMS, PI=HP Printing & Imaging, ST=HP Storage, TU=HP Tru64 UNIX, TL=Trusted Linux, UX=HP-UX, VV=Virtual Vault SUPPORT: For further information, contact HP Services support channel. 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: Driver and Support Alerts/Notifications Sign-up: Product Selection Under Step1: your products 1. Select product category: - a minimum of servers must be selected. 2. Select product family or search: - a minimum of one product must be selected. 3. Add a product: - a minimum of one product must be added. In Step 2: your operating system(s) - check ALL operating systems for which alerts are required. Complete the form 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. Note: In addition to the individual alerts/notifications for the selected operating systems/products, subscribers will automatically receive one copy of alerts for non-operating system categories (i.e., a subscriber who signs up for all six operating system alerts will only receive one copy of all the non-operating system alerts). HP-UX SPECIFIC SECURITY BULLETINS*: The HP-UX Security Patch Matrix is available here: http://itrc.hp.com/service/cki/docDisplay.do? docId=hpuxSecurityMatrix Or via anonymous ftp: ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/ The HP-UX Security Patch Matrix, updated daily, categorizes security patches by platform/OS release, and by Bulletin topic. The Security Patch Check tool completely automates the process of reviewing the Security Patch Matrix for HP-UX 11.XX Versions. NOTE: Installing patches listed in the Security Patch Matrix will completely implement the RESOLUTION in the Security Bulletin _only_ if there are no MANUAL ACTIONS included. The Security Patch Check tool can also verify that a Security Bulletin RESOLUTION has been implemented on HP-UX 11.XX Versions provided that no MANUAL ACTIONS were included. The Security Patch Check tool cannot verify patches implemented via product upgrade. For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA REPORT: To report a potential security vulnerability with any HP supported product, send Email to: email@example.com. It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information. To obtain the security-alert PGP key please send an e-mail message to firstname.lastname@example.org with the Subject of 'get key' (no quotes). 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 2004 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 or 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 8.0.2 iQA/AwUBQRdntOAfOvwtKn1ZEQJYdQCgliHXPk0HSrkB1HzShpKbK1iu5A8AoNVJ wB3ljN5cQJPfor8oTnCo5EuZ =hl5a - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQRh9pyh9+71yA2DNAQKrcQQAiJrfkrz6VIPWHr1LgpUaYycF3RRpeWVR D3hKPoMK+rh6rEyGw3ukf8oXsehpT/UZMFOdHhB8W2zpFlVWZrcL895DKfiMLoSm hj3jSC8Qpy4SBpLvUXP6VHjDJFLSgvLpA7oWjBfxBFtyemO8sojuWGuU7euRYFKa GyokdxbDSWc= =Jyuq -----END PGP SIGNATURE-----