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Sun Solaris cachefsd mount file buffer overflow vulnerability
30 April 2002
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eSO Security Advisory: 4198
Discovery Date: October 29, 2001
ID: eSO:4198
Title: Sun Solaris cachefsd mount file buffer overflow vulnerability
Impact: Local attackers can gain root privileges
Affected Technology: Solaris 2.6, 7, 8 SPARC and x86
Vendor Status: Vendor notified
Discovered By: Kevin Kotas of the eSecurityOnline Research and Development Team
Technical Contributor: Richard Johnson of the eSecurityOnline Research and Development Team
CVE Reference: CAN-2002-0084

Advisory Location:
http://www.eSecurityOnline.com/advisories/eSO4198.asp

Description:
Sun Solaris cachefsd is vulnerable to a flaw that can allow attackers to execute arbitrary code. The problem is due to insufficient bounds checking on mounts that are supplied by a user. An attacker can create a file and have cachefsd process it to gain root privileges.

Technical Recommendation:
As a workaround solution, ensure RPC services are blocked at the firewall. Otherwise, disable cachefsd.

Copyright 2002 eSecurityOnline LLC. All rights reserved.

THE INFORMATION IN THIS VULNERABILITY ALERT IS PROVIDED BY ESECURITYONLINE LLC "AS IS", "WHERE IS", WITH NO WARRANTY OF ANY KIND, AND ESECURITYONLINE LLC HEREBY DISCLAIMS THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ESECURITYONLINE LLC SHALL HAVE NO LIABILITY FOR ANY DAMAGE, CLAIM OR LOSS RESULTING FROM YOUR USE OF THE INFORMATION CONTAINED IN THIS VULNERABILITY ALERT.




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