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- ===========================================================================
- CA-92:06 CERT Advisory
- March 19, 1992
- AIX uucp Vulnerability
-
- ---------------------------------------------------------------------------
-
- The Computer Emergency Response Team/Coordination Center (CERT/CC) has
- received information concerning a vulnerability with the UUCP software
- in versions of AIX up to 2007. The vulnerability does not exist in AIX 3.2.
-
- IBM is aware of this problem, and a fix is available as apar number
- "ix18516". This patch is available for all AIX releases from GOLD to
- 2006.
-
- The fix is in the 2007 update and 3.2 release of AIX. IBM customers may
- call IBM Support (800-237-5511) and ask that the fix be shipped to them.
- Patches may be obtained outside the U.S. by contacting your local IBM
- representative.
-
- ---------------------------------------------------------------------------
-
- I. Description
-
- Previous versions, except AIX 3.2, of the UUCP software contained
- incorrectly configured versions of various files.
-
-
- II. Impact
-
- Local users can execute unauthorized commands and gain unauthorized
- root access.
-
-
- III. Solution
-
- - If allowing users access to the uucp isn't necessary, disable it.
-
- % chmod 0100 /usr/bin/uucp
-
- - Obtain the fix from IBM Support.
-
- - Install the fix following the instructions in the README file.
-
- ---------------------------------------------------------------------------
- The CERT/CC would like to thank Steve Knodle, Clarkson University, for
- bringing this security vulnerability to our attention.
- ---------------------------------------------------------------------------
-
- If you believe that your system has been compromised, contact CERT/CC or
- your representative in FIRST (Forum of Incident Response and Security Teams).
-
- Internet E-mail: cert@cert.org
- Telephone: 412-268-7090 (24-hour hotline)
- CERT/CC personnel answer 7:30 a.m.-6:00 p.m. EST(GMT-5)/EDT(GMT-4),
- on call for emergencies during other hours.
-
- Computer Emergency Response Team/Coordination Center (CERT/CC)
- Software Engineering Institute
- Carnegie Mellon University
- Pittsburgh, PA 15213-3890
-
- Past advisories, information about FIRST representatives, and other
- information related to computer security are available for anonymous ftp
- from cert.org (192.88.209.5).
-
-