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. 

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