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AUSCERT External Security Bulletin Redistribution
ESB-2008.0634 -- [Solaris]
A Security Vulnerability in Sun Java System Calendar Server May Allow
Denial of Service (DoS) When Access Logging is Enabled
19 June 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Sun Java System Calendar Server 6.3
Sun Java System Calendar Server 6 2005Q4
Sun Java System Calendar Server 6 2005Q1
Sun Java System Calendar Server 6 2004Q2
Sun ONE Calendar Server 6.0
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2008-2749
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-235521-1
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Solution Type Sun Alert
Solution 235521 : A Security Vulnerability in Sun Java System Calendar
Server May Allow Denial of Service (DoS) When Access Logging is Enabled
Related Categories
* Home>Content>Sun Alert Criteria Categories>Security
* Home>Content>Sun Alert Release Phase>Resolved
Bug ID 6622866
Product
Sun Java System Calendar Server 6.3,
Sun Java System Calendar Server 6 2005Q4,
Sun Java System Calendar Server 6 2005Q1,
Sun Java System Calendar Server 6 2004Q2,
Sun ONE Calendar Server 6.0
Date of Resolved Release
13-Jun-2008
SA Document Body
A Security Vulnerability in Sun Java System Calendar Server May Allow Denial
of Service (DoS) When Access Logging is Enabled
1. Impact
A security vulnerability in Sun Java System Calendar Server may allow a remote
unprivileged user to crash the Calendar Server when access logging is enabled.
This is a type of Denial of Service (DoS).
2. Contributing Factors
SPARC Platform
* Sun ONE Calendar Server 6.0
* Sun Java System Calendar Server 6 2004Q2
* Sun Java System Calendar Server 6 2005Q1
* Sun Java System Calendar Server 6 2005Q4
* Sun Java System Calendar Server 6.3 without patch 121657-23
x86 Platform
* Sun ONE Calendar Server 6.0
* Sun Java System Calendar Server 6 2004Q2
* Sun Java System Calendar Server 6 2005Q1
* Sun Java System Calendar Server 6 2005Q4
* Sun Java System Calendar Server 6.3 without patch 121658-23
Linux
* Sun ONE Calendar Server 6.0
* Sun Java System Calendar Server 6 2004Q2
* Sun Java System Calendar Server 6 2005Q1
* Sun Java System Calendar Server 6 2005Q4
* Sun Java System Calendar Server 6.3 without patch 121659-23
Notes:
1. To determine the version of Sun Java System Calendar Server on a system,
the following command can be run:
$ csversion
Sun Java(tm) System Calendar Server 6.3-7.01 (built Feb 20 2008)
SunOS palamoor 5.10 Generic_118833-36 sun4u sparc SUNW,A70
2. This issue only affects the Calendar Server when access logging is enabled.
To determine if access logging is enabled, look for the config
"service.http.commandlog.all" in the configuration file (ics.conf).
$ grep service.http.commandlog.all <install_path>/cal/config/ics.conf
service.http.commandlog.all = "yes"
3. Symptoms
If this issue is exploited to cause a Denial of Service (DoS) the Calendar
Server will no longer be running on the system. This can be determined using
a command such as the following, which will produce no output if the process
has crashed:
$ pgrep cshttpd
Depending on the system configuration, the Calendar Server process may leave
a crash dump, which may have a stack trace similar to the following if this
issue has been exploited:
$ pstack core
...
...
----------------- lwp# 8 / thread# 8 --------------------
ff029a6c sock_readable (442f322e, 302e302e, 300a4143, 43455054, 3a205445, 58542f58) + 33c
...
...
4. Workaround
To workaround this issue, access logging can be disabled by editing the
"ics.conf" file, changing the value for "service.http.commandlog.all" to "no",
as follows:
$ grep service.http.commandlog.all <install_path>/cal/config/ics.conf
service.http.commandlog.all = "no"
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Sun Java System Calendar Server 6.3 with patch 121657-23 or later
x86 Platform
* Sun Java System Calendar Server 6.3 with patch 121658-23 or later
Linux
* Sun Java System Calendar Server 6.3 with patch 121659-23 or later
To resolve this issue on versions prior to 6.3, an upgrade to the 6.3 release
is required first, followed by the appropriate patch application from above.
The upgrade instructions can be found at:
http://docs.sun.com/source/819-7561/calendarSvr.html
For more information on Security Sun Alerts, see Technical Instruction ID
213557.
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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
CA 95054 U.S.A. All rights reserved.
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