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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.166 -- Compaq Security Advisory (SSRT0817, SSRT0821) Potential Security Vulnerabilities with Compaq Secure Web Server (PHP and apache/mod_ssl) 5 April 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Compaq Secure Web Server (CSWS) Vendor: Compaq Operating System: OpenVMS V7.1-2 or later TRU64 UNIX V5.0a or later Impact: Execute Arbitrary Code/Commands Access Required: Remote Ref: ESB-2002.101 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 TITLE: (SSRT0817, SSRT0821) Potential Security Vulnerabilities with Compaq Secure Web Server (PHP and apache/mod_ssl) Posted at http://ftp.support.compaq.com/patches/.new/security.shtml NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact. RELEASE DATE: March 2002 SOURCE: Compaq Computer Corporation Compaq Services Software Security Response Team X-REFERENCE: CVE Candidate - PHP (CAN-2002-0081) , Apache/mod_ssl(CAN-2002-0082) PROBLEM SUMMARY: Compaq was recently notified of two potential vulnerabilities that impact Compaq's distributed Secure Web Server (CSWS) for OpenVMS and TRU64 UNIX. (SSRT0817) PHP PHP (Hypertext Preprocessor scripting language). PHP does not perform proper bounds checking on in functions related to Form-based File Uploads in HTML to decode MIME encoded files. This potential overflow vulnerability may allow arbitrary code to be executed. (SSRT0821) Apache/mod_ssl Apache/mod_ssl session cache management routines use an unchecked buffer that could potentially allow an overflow of a session cache buffer. Thispotential vulnerability may allow arbitrary code to be executed. VERSIONS IMPACTED: IMPACT: CSWS (SSRT0817) PHP (SSRT0821) Apache/mod_ssl OpenVMS V7.1-2 or later CSWS_PHP V1.0 CSWS V1.0-1, CSWS V1.1-1, CSWS V1.2 TRU64 UNIX V5.0A or later CSWS V5.5.2 CSWS V5.5.2 *NOTE:These reported potential vulnerabilities do not have an impact to the base operating system in the form of elevated permissions or privileges. NO IMPACT: Himalaya Web Products Compaq Management Software Web Products RESOLUTION: Compaq has corrected both problems and created patches that are now available for CSWS (Compaq Secure Web Server) for OpenVMS and TRU64 UNIX. CSWS for OpenVMS V7.1-2 or later: A Compaq Secure Web Server security update kit is available for download at: http://www.openvms.compaq.com/openvms/products/ips/apache/csws_patches .html (SSRT0817) PHP INSTALLED VERSION UPDATE KIT CSWS_PHP 1.0 CSWS_PHP10_UPDATE V1.0 NOTE: (SSRT0817) PHP - For OpenVMS - if upgrading is not possible or a patch cannot be applied immediately, the potential PHP overflow vulnerability may be minimized by adding the following line to MOD_PHP.CONF file: PHP_FLAG file_uploads OFF This will prevent using fileuploads, which may not be an acceptable short-term solution. (SSRT0821) Apache/mod_ssl Installed Version Update Kit CSWS V1.2 CSWS12_UPDATE V1.0 CSWS V1.1-1 CSWS111_UPDATE V1.0 CSWS V1.0-1 CSWS101_UPDATE V1.0 TRU64 UNIX for V5.0a or later: A Compaq Secure Web Server security update kit is available for download at: http://tru64unix.compaq.com/internet/download.htm#sws_v582 select and install the CSWS (Compaq Secure Web Server) kit V5.8.2 Installed Version Install Updated Server Kit CSWS V5.5.2 CSWS V5.8.2 After completing the update, Compaq strongly recommends that you perform an immediate backup of your system disk so that any subsequent restore operations begin with updated software. Otherwise, you must reapply the patch after a future restore operation. Also, if at some future time you upgrade your system to a later patch version, you may need to reapply the appropriate patch. SUPPORT: For further information, contact Compaq Global Services. SUBSCRIBE: To subscribe to automatically receive future Security Advisories from the Compaq's Software Security Response Team via electronic mail: http://www.support.compaq.com/patches/mailing-list.shtml REPORT: To report a potential security vulnerability with any Compaq supported product, send email mailto:security-ssrt@compaq.com Compaq appreciates your cooperation and patience. We regret any inconvenience applying this information may cause. As always, Compaq urges you to periodically review your system management and security procedures. Compaq will continue to review and enhance the security features of its products and work with customers to maintain and improve the security and integrity of their systems. "Compaq is broadly distributing this Security Advisory to notify all users of Compaq products of the important security information contained in this Advisory. Compaq recommends that all users determine the applicability of this information to their individual situations and take appropriate action. Compaq does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, Compaq will not be responsible for any damages resulting from user's use or disregard of the information provided in this Advisory." Copyright 2002 Compaq Information Technologies Group, L.P. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Compaq and the names of Compaq products referenced herein are, either, trademarks and/or service marks or registered trademarks and/or service marks of Compaq Information Technologies Group, L.P. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners. - -----BEGIN PGP SIGNATURE----- Version: PGP 7.0.1 iQA/AwUBPKYaXznTu2ckvbFuEQLbTQCfarAsi8kRC4LM8mftiUv84AWBHmYAn1Z7 qdlODoP4yGBrHmi2hIVqr0Ia =egdQ - -----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 auscert@auscert.org.au and we will forward your request to the appropriate person. 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 use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. 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 original authors 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/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au 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 emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBPK2++yh9+71yA2DNAQFpjgQAluu+jVM21HMM+bqiSuA/lxqlhQ6Kbtcd YzWGfDv2HSreAov0fBBv9Ma7QG0D1FRhs4whnD6oTY7Bc/b1+l583N9bdvGCG11W qzTyyjA5anDOU7C7VbmZCucDai6mQjDXM3CjhyenrXpEo1PYEj8PG6/WH4lWqU9O 2WlWEPwL19E= =6725 -----END PGP SIGNATURE-----