exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

iDEFENSE Security Advisory 2005-12-21.t

iDEFENSE Security Advisory 2005-12-21.t
Posted Dec 28, 2005
Authored by iDefense Labs, iDefense | Site idefense.com

iDefense Security Advisory 12.21.05 - Remote exploitation of a buffer overflow vulnerability in Adobe Inc.'s JRun 4 may allow attackers to execute arbitrary code or cause a denial of service condition.

tags | advisory, remote, denial of service, overflow, arbitrary
SHA-256 | 586e6f0046f47138eee16035eac620df8432d626803bb4ac5a141bce9c581ac6

iDEFENSE Security Advisory 2005-12-21.t

Change Mirror Download
Macromedia JRun 4 Web Server URL Parsing Buffer Overflow Vulnerability

iDefense Security Advisory 12.21.05
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=360
December 21, 2005

I. BACKGROUND

Macromedia JRun 4 is an application server used for developing and
deploying Java based applications. More information can be found at
the following URL:

http://www.macromedia.com/software/jrun/

II. DESCRIPTION

Remote exploitation of a buffer overflow vulnerability in Adobe Inc.'s
JRun 4 may allow attackers to execute arbitrary code or cause a denial
of service condition.

The vulnerability exists within the JRun web server, specifically in the
handling of long request strings. In certain configurations, when a long
(approximately 64k) URL is supplied, a stack-based overflow occurs
potentially allowing the execution of arbitrary code. In testing
performed by iDefense Labs, it was possible to overwrite the saved
return address on the stack with remotely supplied values (converted
into 'wide characters' by the server).

III. ANALYSIS

Successful exploitation may allow remote attackers to execute arbitrary
code with Local System privileges. The supplied JRun web server must be
active for the attack vector to exist. It is not recommended to use the
JRun web server component in production systems, as the installer
mentions that it should be used for development only.

As the service restarts after each crash, it is possible to make
multiple attempts to exploit this issue, and each time restart from a
'clean' state.

Although this vulnerability allows a stack overwrite, it may be more
difficult to exploit due the input string being converted into a 'wide
character' version of the str input, by placing a null byte between
each character. While this does not necessarily prevent exploitation, it
does increase the complexity of developing an exploit.

Exploitation of this vulnerability may allow a remote attacker to
execute code on the affected system as Local System, allowing complete
compromise, or cause a denial of service against the affected system,
preventing legitimate use.

IV. DETECTION

This vulnerability was confirmed by the vendor to affect the JRun 4
webserver server prior to the JRun 4 Updater 5 release in March of 2005.

V. WORKAROUND

The JRun documentation suggests that the JRun Web Server should not be
used in a production environment. In a development environment, the
JRun server should not accept connections from outside of the
development network.

VI. VENDOR RESPONSE

Adobe has reported that this issue was resolved in the JRun 4 Updater 5
release in March 2005.

The following security advisory was released on December 15, 2005:

http://www.macromedia.com/devnet/security/security_zone/mpsb05-13.html

VII. CVE INFORMATION

A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.

VIII. DISCLOSURE TIMELINE

08/25/2004 Initial vendor notification
08/31/2004 Initial vendor response
12/21/2005 Public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

Get paid for vulnerability research
http://www.idefense.com/methodology/vulnerability/vcp.php

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright © 2005 iDefense, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close