-----BEGIN PGP SIGNED MESSAGE----- Internet Security Systems Security Brief July 31, 2002 Remote Buffer Overflow Vulnerability in Sun RPC Synopsis: Internet Security Systems (ISS) X-Force has discovered a buffer overflow in the xdr_array filter primitive. This function is a part of the Sun RPC library, and it is used in multiple RPC services. Any native or third party software that uses the xdr_array function may be vulnerable. Vulnerable RPC services are installed and enabled by default on the affected software versions. Impact: The buffer overflow vulnerability can allow remote attackers to execute arbitrary commands on a target system with superuser privileges. Attackers pose the most serious risk when attacking unprotected networks, or improperly protected networks Affected Versions: Sun Microsystems Solaris 2.5.1 Sun Microsystems Solaris 2.6 Sun Microsystems Solaris 7 Sun Microsystems Solaris 8 Sun Microsystems Solaris 9 Note: The versions above were tested and found to be vulnerable. Additional commercial and open-source Unix operating systems use implementations of Sun RPC, and may also be vulnerable. For the complete ISS X-Force Security Advisory, please visit: http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20823 ______ 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) 2002 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 xforceat_private 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 xforceat_private of Internet Security Systems, Inc. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPUgOXzRfJiV99eG9AQG3NwQAqgUoyqctQpqzo6aZGXGVPFaSZtv5Qu85 kfPVlyJXL6crPQbelYtwAWolBI7qYGSE74lo4jRcpeI5lG/K8p39X66zHaZPAqZ7 fYZyEfIvJ3gCqtbowZSNUAvm1jdoFa0RVTwbuKmNPSGcDTebi+o7buWEG37HzdKO YUEiRp8erpg= =VTC/ -----END PGP SIGNATURE-----
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