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Security bulletin

Patch available for potential JRun 4 Updater 6 IIS 6 denial of service issue

Release date: March 13, 2007

Vulnerability identifier: APSB07-07

CVE number: CVE-2007-1278

Platform: Windows only

Affected software versions: ColdFusion MX 7.X

  • JRun 4.0 Updater 6
  • ColdFusion MX 7.0 Enterprise Edition, if installed as the "Multi-Server" option
  • ColdFusion MX 6.1 Enterprise, if installed with the "J2EE" option and deployed on JRun 4.0 Updater 6

NOTE: ColdFusion MX 6.1 and 7.0 Standard editions are not affected.

Summary

A vulnerability in JRun’s IIS connector could allow a denial of service attack. By taking a series of specific actions after requesting a file located in the JRun web application root (with context root), a malicious user could potentially cause a denial of service attack on Microsoft IIS 6 installations of JRun 4 Updater 6.

Solution

Adobe recommends affected users update their software using the installation instructions below.

NOTE: Back up your existing files before making changes. As always, test the changes in a non-production environment before applying the changes to production servers.

To install:

JRun 4.0 Updater 6 or ColdFusion MX 7.0 (installed as the Multi-Server option)

  1. Copy jrun-hotfix-iis6-65502.zip to JRun machine.
  2. Rename present jrun_iis6_wildcard.dll to something else.
  3. Extract jrun_iis6_wildcard.dll from jrun-hotfix-iis6-65502.zip to JRun-Home/lib/wsconfig/1 directory.
  4. If there is more then one numbered directory under JRun-Home/lib/wsconfig, check for the jrun_iis6_wildcard.dll in those directories and repeat step 2 and 3 if the dll is found.
  5. Restart IIS world wide web services.
  6. Check the connector log to confirm that JRun connector built is 108433.

ColdFusion MX 6.1 Enterprise, if installed with the "J2EE" option and deployed on JRun 4.0 Updater 6

(For ColdFusion 6.1, Updater 1 is required)

  1. Copy jrun-hotfix-iis6-65502.zip to JRun machine.
  2. Rename present jrun_iis6_wildcard.dll to something else.
  3. Extract jrun_iis6_wildcard.dll from jrun-hotfix-iis6-65502.zip to JRun-Home/lib/wsconfig/1 directory.
  4. If there is more then one numbered directory under JRun-Home/lib/wsconfig, check for the jrun_iis6_wildcard.dll in those directories and repeat step 2 and 3 if the dll is found.
  5. Restart IIS world wide web services.
  6. Check the connector log to confirm that JRun connector built is 108433.

Severity rating

Adobe categorizes this as a low severity issue and recommends affected users patch their installations.

Details

A vulnerability in JRun’s IIS connector could allow a denial of service attack. By taking a series of specific actions after requesting a file located in the JRun web application root (with context root), a malicious user could potentially cause a denial of service attack on Microsoft IIS installations of JRun 4 Updater 6. This issue is specific to Microsoft IIS 6 installations of JRun 4, and is remotely exploitable. Microsoft IIS 5 installations are not vulnerable.

Acknowledgments:

Adobe would like to thank Shoji Kamiichi of NEC for reporting this vulnerability and for working with us to help protect our customers' security.

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