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AUSCERT External Security Bulletin Redistribution
ESB-2010.0070
Security Vulnerability in the Sun Java System Directory Server May Allow
Crafted LDAP Search Requests To Cause A Denial Of Service (DoS) Condition
21 January 2010
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AusCERT Security Bulletin Summary
---------------------------------
Product: Sun Java System Directory Server
Publisher: Sun Microsystems
Operating System: Solaris
Linux variants
Windows
HP-UX
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Mitigation
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-275711-1
Comment: Please note at the time of publication there was no workaround or
resolution provided by Sun.
Until a fix is released, users should consider restricting network
access to the Sun Java System Directory Server and monitor traffic
and system performance for unusual activity.
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Article ID : 275711
Article Type : Sun Alert
Last reviewed : 2010-01-20
Audience : PUBLIC
Keywords :
Copyright Notice: Copyright © 2009 Sun Microsystems, Inc. All Rights
Reserved
Security Vulnerability in the Sun Java System Directory Server May
Allow Crafted LDAP Search Requests To Cause A Denial Of Service (DoS)
Condition
_________________________________________________________________
Category : Security
Release Phase : Preliminary
Bug Id : 6915746
Product : Sun Directory Server Enterprise Edition
Sun Java System Directory Server Enterprise Edition 6.3
Sun Java System Directory Server Enterprise Edition 6.2
Sun Java System Directory Server Enterprise Edition 6.1
Sun Java System Directory Server Enterprise Edition 6.0
Sun Java System Directory Server 5.2
Security Vulnerability in the Sun Java System Directory Server May Allow
Crafted LDAP Search Requests To Cause A Denial Of Service (DoS) Condition
1. Impact
A security vulnerability in the Sun Java System Directory Server
(ns-slapd and slapd.exe) may allow a remote unprivileged user to crash
the Directory Server process via crafted LDAP search requests, thereby
leading to a Denial of Service (DoS) condition.
2. Contributing Factors
This issue can occur in the following releases for Solaris 9 and 10 on
SPARC platform, Solaris 10 on x64 platform, Linux, Windows, and HP-UX:
PatchZIP (Compressed Archive) and Native package versions:
* Sun Directory Server Enterprise Edition 7.0
This issue can occur in the following releases for Solaris 9 and 10 on
SPARC, x86 and x64 platforms, Linux, Windows, and HP-UX:
PatchZIP (Compressed Archive) and Native package versions:
* Sun Java System Directory Server Enterprise Edition 6.3.1
* Sun Java System Directory Server Enterprise Edition 6.3
* Sun Java System Directory Server Enterprise Edition 6.2
* Sun Java System Directory Server Enterprise Edition 6.1
* Sun Java System Directory Server Enterprise Edition 6.0
This issue can occur in the following releases for Solaris 9 and 10 on
SPARC, x86 and x64 platforms, Linux, Windows, AIX and HP-UX:
PatchZIP (Compressed Archive) and Native package versions:
* Sun Java System Directory Server 5.2
To determine the version of Directory Server running on a system, the
following command can be run:
For Directory Server 5.2:
On Solaris, Linux, AIX and HP-UX systems:
$ cd <installation directory>/bin/slapd/server
$ ./ns-slapd -V -D <instance-directory>
On 64-bit Solaris:
$ cd <installation directory>/bin/slapd/server/64
$ ./ns-slapd -V -D <instance-directory>
On 64-bit HP-UX:
$ cd <installation directory>/bin/slapd/server/pa20_64
$ ./ns-slapd -V -D <instance-directory>
On Windows systems:
cd <installation directory>\bin\slapd\server
slapd.exe -V -D <instance-directory>
If the output contains the version string 5.2, the system is affected
by this issue.
For Directory Server 6.x:
On Solaris, Linux and HP-UX systems (including 64-bit systems):
$ cd <installation directory>/ds6/bin
$ ./dsadm -V
On Windows systems:
cd <installation directory>\ds6\bin
dsadm.exe -V
If the output contains the version string 6.0, 6.1, 6.2, 6.3 or 6.3.1,
the system is affected by this issue.
For Directory Server 7.0:
On Solaris, Linux and HP-UX systems (including 64-bit systems):
$ cd <installation directory>/bin
$ ./dsadm -V
On Windows systems:
cd <installation directory>\bin
dsadm.exe -V
If the output contains the version string 7.0, the system is affected
by this issue.
3. Symptoms
If the described issue occurs, the Directory Server may crash,
resulting in the service being no longer available. If the system is
configured to dump core, the stack trace may be observed to be similar
to the following:
parse_LDAPProxyAuth ()
core_get_proxyauth_dn ()
common_core_set_pb ()
search_core_set_pb ()
ldap_decode_search ()
ldap_parse_request ()
process_ldap_operation_using_core_api ()
ldap_frontend_main_using_core_api ()
4. Workaround
There is no workaround available for this issue.
5. Resolution
A final resolution is pending completion.
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 2000-2010 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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