Caldera OpenServer sendmail buffer overflow
| sco-openserver-sendmail-bo (6303) |  High Risk |
Description:
SCO OpenServer is vulnerable to a buffer overflow caused by a vulnerability in the sendmail program, which is installed with the MMDF (Multi-channel Memo Distribution Facility) package. The sendmail program fails to properly handle command line arguments. By using command line arguments and sending a string containing 3000 characters or more, an attacker can overflow the buffer and execute arbitrary code on the system with MMDF subsystem privileges.
Platforms Affected:
- SCO, SCO OpenServer 5.0.6
Remedy:
Apply the appropriate patch for your system, as listed in SCO System Security Enhancement (SSE) SSE072B 11-Apr-2001. See References.
As a workaround, chmod -s /opt/K/SCO/MMDF/2.43.3b/usr/lib/sendmail.
Consequences:
Gain Privileges
References:
- SCO System Security Enhancement (SSE) SSE072C 30-Aug-2001, SSE072C at ftp://ftp.sco.com/pub/SSE/sse072c/.
- Strategic Reconnaissance Team Security Advisory SRT2001-01, SCO 5.0.6 MMDF issues (sendmail 8.9.3) at http://marc.theaimsgroup.com/?l=bugtraq&m=98576095521415&w=2.
- BID-2593: SCO OpenServer sendmail Buffer Overflow Vulnerability
- CVE-2001-0588: sendmail 8.9.3, as included with the MMDF 2.43.3b package in SCO OpenServer 5.0.6, can allow a local attacker to gain additional privileges via a buffer overflow in the first argument to the command.
Reported:
Mar 27, 2001
The information within this database 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.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net