Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0137 -- Internet Security Systems Security Brief Snort RPC Preprocessing Vulnerability 04 March 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Snort Operating System: Linux UNIX Impact: Root Compromise Access Required: Remote Comment: CIAC Bulletin: http://www.ciac.org/ciac/bulletins/n-049.shtml ISS Bulletin: http://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21951 CVE Id: CAN-2003-0033 Vendor: http://www.snort.org/ - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Internet Security Systems Security Brief March 3, 2003 Snort RPC Preprocessing Vulnerability Synopsis: ISS X-Force has discovered a remotely exploitable buffer overflow condition in Snort. Snort is an open source intrusion detection system. A buffer overflow flaw exists in Snort RPC preprocessing code that is vulnerable to attack. Impact: Remote attackers may exploit the buffer overflow condition to run arbitrary code on a Snort sensor with the privileges of the Snort IDS process, which typically runs as the superuser. The vulnerable preprocessor is enabled by default. It is not necessary to establish an actual connection to a RPC portmapper service to exploit this vulnerability. Snort may be installed by default on some commercially available network- security appliances. Remote attackers can exploit this vulnerability by directing the exploit towards any host on any network monitored by the Snort intrusion detection system. A successful attack can either crash the Snort sensor, or lead to complete remote compromise. Affected Versions: Snort 1.8 (July 2001) up to and including Snort-Current (March 3, 2003 1pm ET) For the complete ISS X-Force Security Advisory, please visit: http://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21951 ______ About Internet Security Systems (ISS) Founded in 1994, Internet Security Systems (ISS) (Nasdaq: ISSX) is a pioneer and world leader in software and services that protect critical online resources from an ever-changing spectrum of threats and misuse. Internet Security Systems is headquartered in Atlanta, GA, with additional operations throughout the Americas, Asia, Australia, Europe and the Middle East. Copyright (c) 2003 Internet Security Systems, Inc. All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this document. It is not to be edited or altered in any way without the express written consent of the Internet Security Systems X-Force. If you wish to reprint the whole or any part of this document in any other medium excluding electronic media, please email xforce@iss.net for permission. Disclaimer: The information within this paper may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information. X-Force PGP Key available on MIT's PGP key server and PGP.com's key server, as well as at http://www.iss.net/security_center/sensitive.php Please send suggestions, updates, and comments to: X-Force xforce@iss.net of Internet Security Systems, Inc. - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPmOVhDRfJiV99eG9AQEwngP/fVMwf9Cfkcwmzxme2IERb+WgNDYQIpgE 1W5ThC5s+KVkrHJGQDF4p1t+Ex2T4EmUSEC86Yx8TDi0t+zWRI0IUKrnWmOkBZQe 1a5Rn3wqqqEPQF2seK7CLxEH649Nnbt1rEr0/puclvE1XufVxjVihzkRLMErIF0h Uwpa23ETicc= =11YN - -----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 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 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 member emergencies only. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBPmSD5ih9+71yA2DNAQFb4wP/fgYsaBqhcU6ROI099ULcay9ASYZRscwo TIv3Rvjr+IQHJPpMvw4EY0FEgbvcI850UARYGdSTEG8DOUEOIsEVpDO1w2vIssnh Z0cNA+lopWt21nLSMNns/y3cAhTAhNV8EP7KU4mT3Y1rXmYxc4L+wYk5kfReAOcl tC2RB937jD4= =PJyT -----END PGP SIGNATURE-----