ISS Security Alert Summary for November 19, 1997.
42fa73bee2162383cc7015e140ce290f5aa433d145dd630a1d361c6fb22f9c2d
From xforce@iss.net Thu Nov 20 14:00:12 1997
Date: Wed, 19 Nov 1997 16:21:56 -0500 (EST)
From: X-Force <xforce@iss.net>
To: alert@iss.net
Cc: X-Force <xforce@arden.iss.net>
Subject: ISSalert: ISS Security Alert Summary v1 n7
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ISS Security Alert Summary
November 19, 1997
Volume 1 Number 7
X-Force Vulnerability and Threat Database: http://www.iss.net/xforce
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___
Index
5 Reported New Vulnerabilities
- Cisco-passwdloss
- DEC-xterm
- Pentium-crash
- HP-xlock
- MSIE-dildog
U.S. Air Force Deploys Leading Internet Scanner Vulnerability Detection
Software Across Bases Worldwide
Risk Factor Key
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Date Reported: 11/16/97
Vulnerability: Cisco-passwdloss
Affected Platforms: LocalDirector 1.6.3
Risk Factor: High
Cisco development group is investigating reported failures in the enable
password mechanism in LocalDirector 1.6.3. Users who have access to the
LocalDirector via telnet or via the console port can reportedly gain
access to privileged mode without providing the correct password.
X-Force will update this problem as more information becomes available
as this is preliminary information.
Reference:
http://www.cisco.com/warp/public/770/ldpass-pub.shtml
___
Date Reported: 11/12/97
Vulnerability: DEC-xterm
Affected Platforms: Digital UNIX 4.0B (with patch kit 5)
Risk Factor: High
Digital UNIX 4.0B contains a vulnerability in xterm if patch kit 5 has
already been applied. The patch kit replaced an existing xterm bug but
created a new one in the process. By setting your DISPLAY to a variable
that does not exist (eg setenv DISPLAY blah), you can cause xterm to
seg fault and overwrite system files with the core file.
Reference:
http://www.bus.miami.edu/~tom/security/core.html
___
Date Reported: 11/7/97
Vulnerability: Pentium-crash
Affected Platforms: Any Intel Pentium based platform
(eg. Windows NT, Linux, etc)
Risk Factor: High
A code fragment exists that will crash any unpatched operating
system on Intel Pentium CPUs. This problem does not exist in Pentium
Pro, or Pentium II processors. Some operating systems have released
patches to work around this problem.
References:
http://support.intel.com/support/processors/pentium/ppiie/index.htm
http://www.infoworld.com/cgi-bin/displayStory.pl?971111.epentium.htm
http://techweb.cmp.com/eet/news/97/961news/ibug.html
___
Date Reported: 11/4/97
Vulnerability: HP-xlock
Affected Platforms: HP-UX (10.24 with VirtualVault)
see reference for exact versions
Risk Factor: High
Xlock is a program that allows X terminal users to lock their console
while staying logged in. It contains a vulnerability that allows local
users to obtain access to the system that is running xlock.
Reference:
http://us-support.external.hp.com/ - HP Security Bulletin #00073
___
Date Reported: 11/1/97
Vulnerability: MSIE-dildog
Affected Platforms: Windows 95 (MS Internet Explorer 4.0 Suite)
Risk Factor: High
Microsoft Internet Explorer 4.0 Suite contains a buffer overflow
condition that can be exploited when a user accesses a malicious page
contains a link to a "res://" address that is longer than 256
characters. The extra characters are saved in the machines memory and
arbitrary code can be executed on the users system.
References:
http://www.l0pht.com/advisories/ie4_x1.txt
http://www.microsoft.com/ie/security/?/ie/security/buffer.htm
___
U.S. Air Force Deploys Leading Internet Scanner Vulnerability Detection
Software Across Bases Worldwide
www.iss.net/cgi-bin/dbt-display.exe/db_data/press_rel/release/11179752.plt
___
Risk Factor Key:
High any vulnerability that provides an attacker with immediate
access into a machine, gains superuser access, or bypasses
a firewall. Example: A vulnerable Sendmail 8.6.5 version
that allows an intruder to execute commands on mail
server.
Medium any vulnerability that provides information that has a
high potential of giving access to an intruder. Example:
A misconfigured TFTP or vulnerable NIS server that allows
an intruder to get the password file that possibly can
contain an account with a guessable password.
Low any vulnerability that provides information that
potentially could lead to a compromise. Example: A
finger that allows an intruder to find out who is online
and potential accounts to attempt to crack passwords
via bruteforce.
Internet Security Systems, Inc., (ISS) is the pioneer and world's leading
supplier of network security assessment and intrusion detection tools,
providing comprehensive software that enables organizations to proactively
manage and minimize their network security risks. For more information,
contact the company at (800) 776-2362 or (770) 395-0150 or visit the ISS
Web site at http://www.iss.net.
________
Copyright (c) 1997 by Internet Security Systems, Inc.
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