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AUSCERT External Security Bulletin Redistribution
ESB-2004.0749 -- Sun Alert Notification 57675
Security Vulnerability in ping(1M)
2 December 2004
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AusCERT Security Bulletin Summary
---------------------------------
Product: ping
Publisher: Sun Microsystems
Operating System: Solaris
Platform: IA-32
SPARC
Impact: Increased Privileges
Access: Existing Account
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-57675-1
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Sun(sm) Alert Notification
* Sun Alert ID: 57675
* Synopsis: Security Vulnerability in ping(1M)
* Category: Security
* Product: Solaris
* BugIDs: 4807715
* Avoidance: Patch
* State: Resolved
* Date Released: 30-Nov-2004
* Date Closed: 30-Nov-2004
* Date Modified:
1. Impact There is a potential buffer overflow in ping(1M) which could
result in a local unprivileged user gaining elevated privileges.
2. Contributing Factors This issue can occur in the following
releases:
SPARC Platform
* Solaris 7 without patch [2]118313-01
* Solaris 8 without patch [3]116986-02
* Solaris 9 without patch [4]116774-03
x86 Platform
* Solaris 7 without patch [5]118314-01
* Solaris 8 without patch [6]116987-02
* Solaris 9 without patch [7]116775-03
3. Symptoms There are no predictable symptoms that would show the
described issue has been exploited.
Solution Summary
4. Relief/Workaround To reduce the chances of the described issue from
occurring, apply one of the following workarounds:
1. Remove the "set-user-ID" bit from the ping(1M) binary by issuing
the following command:
# chmod u-s /usr/sbin/ping
Note: Removing the "set-user-ID" bit from the ping(1M) utility will
prevent unprivileged users from using the ping(1M) command.
2. Enable non-executable program stacks by adding the following lines
to the "/etc/system" file and reboot the system:
set noexec_user_stack = 1
set noexec_user_stack_log = 1
The above tunable parameters are described in the Solaris Tunable
Parameters Reference Manual at: [9]http://docs.sun.com.
Note: Although enabling non-executable user stacks makes the
likelihood of a successful exploit much smaller, it does not provide
100 percent against exploitation of this vulnerability.
This workaround is only effective on sun4u, sun4m, and sun4d
architectures (enter "uname -m" to display a systems architecture).
This workaround will not work on x86 platforms.
5. Resolution This issue is addressed in the following releases:
SPARC Platform
* Solaris 7 with patch [10]118313-01 or later
* Solaris 8 with patch [11]116986-02 or later
* Solaris 9 with patch [12]116774-03 or later
x86 Platform
* Solaris 7 with patch [13]118314-01 or later
* Solaris 8 with patch [14]116987-02 or later
* Solaris 9 with patch [15]116775-03 or later
This Sun Alert notification is being provided to you on an "AS IS"
basis. This Sun Alert notification may contain information provided by
third parties. The issues described in this Sun Alert notification may
or may not impact your system(s). Sun makes no representations,
warranties, or guarantees as to the information contained herein. ANY
AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential
information. It is being provided to you pursuant to the provisions of
your agreement to purchase services from Sun, or, if you do not have
such an agreement, the Sun.com Terms of Use. This Sun Alert
notification may only be used for the purposes contemplated by these
agreements.
Copyright 2000-2004 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved.
References
1. http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-57675-1#top
2. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-118313-01-1
3. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116986-02-1
4. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116774-03-1
5. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-118314-01-1
6. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116987-02-1
7. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116775-03-1
8. http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-57675-1#top
9. http://docs.sun.com/
10. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-118313-01-1
11. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116986-02-1
12. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116774-03-1
13. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-118314-01-1
14. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116987-02-1
15. http://sunsolve.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-116775-03-1
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