Published:
25 October 2001
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.455 -- CERT Advisory CA-2001-29 Oracle9iAS Web Cache vulnerable to buffer overflow 26 October 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Oracle9iAS Web Cache Vendor: Oracle Impact: Execute Arbitrary Code/Commands Access Confidential Data Access Required: Remote - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- CERT Advisory CA-2001-29 Oracle9iAS Web Cache vulnerable to buffer overflow Original release date: October 25, 2001 Last revised: -- Source: CERT/CC A complete revision history can be found at the end of this file. Systems Affected Systems running: * Oracle9iAS Web Cache Overview A remotely exploitable buffer overflow in the Oracle9iAS Web Cache allows intruders to execute arbitrary code or disrupt the normal operation of Web Cache. I. Description Defcom Labs has discovered a remotely exploitable buffer overflow vulnerability in the Oracle9iAS Web Cache (on all platforms) that allows intruders to either execute arbitrary code with the privileges of the Web Cache process, or disrupt the normal operation of Web Cache. The Oracle9iAS Web Cache provides four web services that are all vulnerable and enabled by default when the software is installed. For more information about these web services, please see the Oracle9iAS Web Cache Administration and Deployment Guide (registration required). These services and the associated ports they listen on are listed below: * 1100/tcp (incoming web cache proxy) * 4000/tcp (administrative interface) * 4001/tcp (web XML invalidation port) * 4002/tcp (statistics port) Additional information regarding this vulnerability is available at http://otn.oracle.com/deploy/security/pdf/webcache.pdf http://www.securityfocus.com/archive/1/3BCEE434.F597D815@defcom.com II. Impact An intruder can execute arbitrary code with the privileges of the web cache process or disrupt the normal operation of Web Cache. Additionally, an intruder might be able to intercept and/or modify sensitive data such as credentials and other types of sensitive information passing through the host running Web Cache. Finally, an intruder may be able to gain access to other systems by using Web Cache as an entry point into the network or by leveraging an existing trust relationship between Web Cache and another system. III. Solution Install a patch from Oracle. More information is available in Appendix A. Appendix A. - Vendor Information This appendix contains information provided by vendors for this advisory. When vendors report new information to the CERT/CC, we update this section and note the changes in our revision history. If a particular vendor is not listed below, we have not received their comments. Oracle Please see http://otn.oracle.com/deploy/security/pdf/webcache.pdf Appendix B. - References 1. http://otn.oracle.com/deploy/security/pdf/webcache.pdf 2. http://www.kb.cert.org/vuls/id/649979 3. http://www.securityfocus.com/archive/1/3BCEE434.F597D815@defcom.com _________________________________________________________________ _________________________________________________________________ The CERT Coordination Center thanks Defcom Security, who discovered this vulnerability and published the information in their advisory. Additionally, we thank Oracle, who published an advisory on this issue. _________________________________________________________________ Author: Ian A. Finlay. ______________________________________________________________________ This document is available from: http://www.cert.org/advisories/CA-2001-29.html ______________________________________________________________________ CERT/CC Contact Information Email: cert@cert.org Phone: +1 412-268-7090 (24-hour hotline) Fax: +1 412-268-6989 Postal address: CERT Coordination Center Software Engineering Institute Carnegie Mellon University Pittsburgh PA 15213-3890 U.S.A. CERT/CC personnel answer the hotline 08:00-17:00 EST(GMT-5) / EDT(GMT-4) Monday through Friday; they are on call for emergencies during other hours, on U.S. holidays, and on weekends. Using encryption We strongly urge you to encrypt sensitive information sent by email. Our public PGP key is available from http://www.cert.org/CERT_PGP.key If you prefer to use DES, please call the CERT hotline for more information. Getting security information CERT publications and other security information are available from our web site http://www.cert.org/ To subscribe to the CERT mailing list for advisories and bulletins, send email to majordomo@cert.org. Please include in the body of your message subscribe cert-advisory * "CERT" and "CERT Coordination Center" are registered in the U.S. Patent and Trademark Office. ______________________________________________________________________ NO WARRANTY Any material furnished by Carnegie Mellon University and the Software Engineering Institute is furnished on an "as is" basis. Carnegie Mellon University makes no warranties of any kind, either expressed or implied as to any matter including, but not limited to, warranty of fitness for a particular purpose or merchantability, exclusivity or results obtained from use of the material. Carnegie Mellon University does not make any warranty of any kind with respect to freedom from patent, trademark, or copyright infringement. _________________________________________________________________ Conditions for use, disclaimers, and sponsorship information Copyright 2001 Carnegie Mellon University. Revision History October 25, 2001: initial release - -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.8 iQCVAwUBO9jGraCVPMXQI2HJAQFVnQP/V53ZIsohPcXiF6pcvUl5zjpRccWtJRkl StUdAbz9aiT7TcuhPcAtOkpOaWMPiDOFGR8Fu8MpVehS8VFEGzDJ0quKgf6LRRjx 8Ni5klqhORJ/+3Z/Pf0c+yHhMlDRV3SFPpnMLaPifBwXDmzgqJRTsL3dRb7fsigR aljIl/lGOHY= =yqti - -----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 iQCVAwUBO9mXSih9+71yA2DNAQEwmQP/YBhxLMaXWAoUf2ZZViQ+BlKDjs2YX06x 4w3scM27E8cGYg1eYYuuu+jbJRJxwLQFpnfbEx0HUpSilR9/sMCK6dnfH/KK9Fmg H8uyNg2VYWGDL6u8Qt3mraGAwsE6h3FveM9Pv2WtW5TLdvxYvhXhd/NaH/vz3DwR hHY5o+PRUlM= =2a0z -----END PGP SIGNATURE-----