Discovery Date: July 5, 2001
Title: Sun Solaris lbxproxy display name buffer overflow vulnerability
Impact: Local attackers can gain group root privileges
Affected Technology: Sun Solaris 8 x86
Vendor Status: Vendor notified
Discovered By: Kevin Kotas of the eSecurityOnline Research
and Development Team
CVE Reference: CAN-2002-0090
Sun Solaris lbxproxy is vulnerable to a buffer overflow condition that can allow an attacker to execute arbitrary code. The overflow occurs due to insufficient bounds checking on the display command line option. A display name can be given that, when processed, will alter program execution.
As a workaround solution, remove the setgid bit from the program.
chmod -s /usr/openwin/bin/lbxproxy
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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