SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   OS (Other)  >   Oracle Java SE Vendors:   SGI (Silicon Graphics)
(SGI Plans to Issue a Fix) Re: Sun Java Runtime Environment (JRE) Bytecode Verifier Casting Bug Lets Arbitrary Code Execute Outside of the Java Security Sandbox
SecurityTracker Alert ID:  1005158
SecurityTracker URL:  http://securitytracker.com/id/1005158
CVE Reference:   CVE-2002-0058   (Links to External Site)
Date:  Aug 30 2002
Impact:   Execution of arbitrary code via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Sun reported a vulnerability in their Java Runtime Environment (JRE) bytecode verifier. An untrusted Java applet may be able to gain elevated privileges on the system.

The vulnerability reportedly exists in the processing to convert types via casting operations. A flaw reportedly exists in the security checks on casting operations. A remote user could exploit this flaw to execute code outside of the security sandbox. This code would execute in the security context of the target (victim) user. The flaw only affects Java applets, not Java applications.

No further technical details were provided.

The following JRE releases are reportedly affected:

Windows Production Releases

SDK and JRE 1.3.1_01a or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_010 or earlier
JDK and JRE 1.1.8_008 or earlier

Solaris(TM) Operating Environment (OE) Reference Releases

SDK and JRE 1.2.2_010 or earlier
JDK and JRE 1.1.8_008 or earlier

Solaris OE Production Releases

SDK and JRE 1.3.1_01 or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_10 or earlier
JDK and JRE 1.1.8_14 or earlier

Linux Production Releases

SDK and JRE 1.3.1_01 or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_010 or earlier

Sun notes that releases prior to SDK and JRE 1.2.2, and JDK and JRE 1.1.8 for Windows and Solaris are also affected and should no longer be used. Users of these releases should upgrade to a later release.

This vulnerability reportedly does not affect the Java 2 SDK, Standard Edition, v 1.4.

Impact:   A remote user can create a Java applet that, when executed on another user's host, will cause arbitrary code to be executed on that other user's host. The arbitrary code can circumvent the Java sandbox security restrictions.
Solution:   IRIX will be issuing a fix as part of IRIX 6.5.18. With IRIX 6.5.18, JRE 1.3.1_02 will be on the 6.5.18 Applications CD, so browsers with the Java plugin can use it by default. SGI recommends upgrading to IRIX 6.5.18 when it becomes available.

For users that cannot upgrade, you can visit the following URL and install the upgraded Java Runtime Environment (JRE) available there:

http://www.sgi.com/products/evaluation/6.x_java_plugin_1.1.1/

The upgraded Java Runtime Environment (JRE), 1.3.1_02, is available from:

http://www.sgi.com/products/evaluation/6.5_java2_1.3.1_02/

To get Netscape to use the upgraded JRE, you should have the Netscape Java plugin installed, available from:

http://www.sgi.com/products/evaluation/6.x_java_plugin_1.1.1/

SGI indicates that another workaround would be to disable Java support at Preferences->Advanced, but obviously this will remove functionality.

Vendor URL:  www.sgi.com/support/security/ (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (SGI/IRIX)
Underlying OS Comments:  IRIX 6.5.17 and prior versions

Message History:   This archive entry is a follow-up to the message listed below.
Mar 19 2002 Sun Java Runtime Environment (JRE) Bytecode Verifier Casting Bug Lets Arbitrary Code Execute Outside of the Java Security Sandbox



 Source Message Contents

Subject:  [Full-Disclosure] Netscape JRE vulnerability on IRIX


-----BEGIN PGP SIGNED MESSAGE-----

_____________________________________________________________________________

                          SGI Security Advisory

        Title:      Netscape JAVA JRE vulnerability
        Number:     20020807-01-I
        Date:       August 29, 2002
        Reference:  CAN-2002-0058
        Reference:  SUN Security Advisory #0216
_____________________________________________________________________________

- -----------------------
- --- Issue Specifics ---
- -----------------------

It has been reported that the Netscape Communicator versions that SGI has
shipped with IRIX have security vulnerabilities in the JAVA JRE code.

See http://home.netscape.com/security/
    http://sunsolve.Sun.COM/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/216
...for additional details.

SGI has investigated the issue and recommends the following steps for
neutralizing the exposure.  It is HIGHLY RECOMMENDED that these measures be
implemented on ALL vulnerable SGI systems.

These issues have been corrected in future releases of IRIX.


- --------------
- --- Impact ---
- --------------

The Netscape Communicator package is not installed by default on IRIX 6.5
systems, it is supplied on the IRIX Applications CD.

To determine the version of IRIX you are running, execute the following
command:

  # /bin/uname -R

That will return a result similar to the following:

  # 6.5 6.5.16f

The first number ("6.5") is the release name, the second ("6.5.16f" in this
case) is the extended release name.  The extended release name is the
"version" we refer to throughout this document.

To see if Netscape Communicator is installed, execute the following command:

$ versions -b netscape
I = Installed, R = Removed

   Name                 Date        Description
   I  netscape             09/19/2001  Netscape Communicator Client, 4.79

If the netscape package is installed, the system is vulnerable.

This vulnerability was assigned the following CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0058


- ----------------------------
- --- Temporary Workaround ---
- ----------------------------

SGI realizes that there are times when upgrading the operating system is
inconvenient or not possible, and in those cases we recommend that you visit
the following URL and install the upgraded Java Runtime Environment (JRE)
available there:

http://www.sgi.com/products/evaluation/6.x_java_plugin_1.1.1/

The upgraded Java Runtime Environment (JRE), 1.3.1_02, is available from:

http://www.sgi.com/products/evaluation/6.5_java2_1.3.1_02/

To get Netscape to use the upgraded JRE, you should have the Netscape
Java plugin installed, available from:

http://www.sgi.com/products/evaluation/6.x_java_plugin_1.1.1/

Another workaround would be to disable Java support at
Preferences->Advanced, but obviously this will remove functionality.


- ----------------
- --- Solution ---
- ----------------

With IRIX 6.5.18, JRE 1.3.1_02 will be on the 6.5.18 Applications CD, so
browsers with the Java plugin can use it by default. Our recommendation is
to upgrade to IRIX 6.5.18 when it becomes available.


   OS Version     Vulnerable?     Patch #      Other Actions
   ----------     -----------     -------      -------------
   IRIX 3.x        unknown                     Note 1
   IRIX 4.x        unknown                     Note 1
   IRIX 5.x        unknown                     Note 1
   IRIX 6.0.x      unknown                     Note 1
   IRIX 6.1        unknown                     Note 1
   IRIX 6.2        unknown                     Note 1
   IRIX 6.3        unknown                     Note 1
   IRIX 6.4        unknown                     Note 1
   IRIX 6.5          yes                       Notes 2 & 3
   IRIX 6.5.1        yes                       Notes 2 & 3
   IRIX 6.5.2        yes                       Notes 2 & 3
   IRIX 6.5.3        yes                       Notes 2 & 3
   IRIX 6.5.4        yes                       Notes 2 & 3
   IRIX 6.5.5        yes                       Notes 2 & 3
   IRIX 6.5.6        yes                       Notes 2 & 3
   IRIX 6.5.7        yes                       Notes 2 & 3
   IRIX 6.5.8        yes                       Notes 2 & 3
   IRIX 6.5.9        yes                       Notes 2 & 3
   IRIX 6.5.10       yes                       Notes 2 & 3
   IRIX 6.5.11       yes                       Notes 2 & 3
   IRIX 6.5.12       yes                       Notes 2 & 3
   IRIX 6.5.13       yes                       Notes 2 & 3
   IRIX 6.5.14       yes                       Notes 2 & 3
   IRIX 6.5.15       yes                       Notes 2 & 3
   IRIX 6.5.16       yes                       Notes 2 & 3
   IRIX 6.5.17       yes                       Notes 2 & 3
   IRIX 6.5.18       no

   NOTES

     1) This version of the IRIX operating has been retired. Upgrade to an
        actively supported IRIX operating system.  See
        http://support.sgi.com/irix/news/index.html#policy for more
        information.

     2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact your
        SGI Support Provider or URL: http://support.sgi.com/irix/swupdates/

     3) Upgrade to IRIX 6.5.18 or install JRE as described in workaround
        section.


- ------------------------
- --- Acknowledgments ----
- ------------------------

SGI wishes to thank FIRST and the users of the Internet Community at large
for their assistance in this matter.


- -------------
- --- Links ---
- -------------

SGI Security Advisories can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/advisories/

SGI Security Patches can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/patches/

SGI patches for IRIX can be found at the following patch servers:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/

SGI freeware updates for IRIX can be found at:
http://freeware.sgi.com/

SGI fixes for SGI open sourced code can be found on:
http://oss.sgi.com/projects/

SGI patches and RPMs for Linux can be found at:
http://support.sgi.com/linux/ or
http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/

SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/nt/

IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/

IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/colls/patches/tools/relstream/index.html

IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/irix/swupdates/

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com (216.32.174.211).  Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

For security and patch management reasons, ftp.sgi.com (mirrors
patches.sgi.com security FTP repository) lags behind and does not do a
real-time update.


- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------

If there are questions about this document, email can be sent to
security-info@sgi.com.

                      ------oOo------

SGI provides security information and patches for use by the entire SGI
community.  This information is freely available to any person needing the
information and is available via anonymous FTP and the Web.

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com (216.32.174.211).  Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

The SGI Security Headquarters Web page is accessible at the URL:
http://www.sgi.com/support/security/

For issues with the patches on the FTP sites, email can be sent to
security-info@sgi.com.

For assistance obtaining or working with security patches, please
contact your SGI support provider.

                      ------oOo------

SGI provides a free security mailing list service called wiretap and
encourages interested parties to self-subscribe to receive (via email) all
SGI Security Advisories when they are released. Subscribing to the mailing
list can be done via the Web
(http://www.sgi.com/support/security/wiretap.html) or by sending email to
SGI as outlined below.

% mail wiretap-request@sgi.com
subscribe wiretap <YourEmailAddress such as aaanalyst@sgi.com >
end
^d

In the example above, <YourEmailAddress> is the email address that you wish
the mailing list information sent to.  The word end must be on a separate
line to indicate the end of the body of the message. The control-d (^d) is
used to indicate to the mail program that you are finished composing the
mail message.


                      ------oOo------

SGI provides a comprehensive customer World Wide Web site. This site is
located at http://www.sgi.com/support/security/ .

                      ------oOo------

If there are general security questions on SGI systems, email can be sent to
security-info@sgi.com.

For reporting *NEW* SGI security issues, email can be sent to
security-alert@sgi.com or contact your SGI support provider.  A support
contract is not required for submitting a security report.

______________________________________________________________________________
      This information is provided freely to all interested parties
      and may be redistributed provided that it is not altered in any
      way, SGI is appropriately credited and the document retains and
      includes its valid PGP signature.

-----BEGIN PGP SIGNATURE-----
Version: 2.6.2

iQCVAwUBPW581LQ4cFApAP75AQHyBgQAgrc+iRjZfWc77pWaF1KoFkG9SMU1I389
1vf9ggwRkmE5Yg7gdVYSuwBBGdDdSBpn1rud8lfiWuKjrrJctlGoT50zfRyNa7GS
v8LscrKZBiMeStUaf+0nPywpsFprdjDxWHr6qypqncVA0IqtjPlDEub/pNsvbTnP
TNSvLS6i8R4=
=OR48
-----END PGP SIGNATURE-----
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html


 
 


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2020, SecurityGlobal.net LLC