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CERT Coordination Center

Macromedia JRun Server is vulnerable to a cross-site scripting attack

Vulnerability Note VU#668206

Original Release Date: 2004-10-12 | Last Revised: 2004-10-12


A cross-site scripting vulnerability exists in the Macromedia JRun Server Management Console that may allow an attacker to execute arbitrary code.


JRun is an application server that works with most popular web servers such as Apache and IIS. Macromedia states that JRun is deployed at over 10,000 organizations worldwide. The JRun Management Console (JMC) is a web-based utility used to manage and configure the JRun Server. There are reports of a cross-site scripting vulnerability in the JMC. According these reports, the JMC fails to filter variables encoded in a URL for malicious content. As a result, a remote attacker may be able to insert and execute arbitrary code within the security context of the JMC site. According to Macromedia only JRun version 4.0 is vulnerable.


A remote attacker may be able to execute arbitrary code within the security context of the JMC site. If the site is compromised, an attacker may be able to access a user's cookies allowing them to view sensitive information or hijack an authenticated user's session.


Apply Patch

Apply the latest JRun updater:

Vendor Information

Affected   Unknown   Unaffected

Macromedia Inc.

Notified:  September 29, 2004 Updated:  October 04, 2004



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



This vulnerability was reported in Macromedia Security Bulletin MPSB04-08. Macromedia credits Acros for helping to discover and report this issue.

This document was written by Jeff Gennari.

Other Information

CVE IDs: None
Severity Metric: 5.76
Date Public: 2004-09-23
Date First Published: 2004-10-12
Date Last Updated: 2004-10-12 16:52 UTC
Document Revision: 97

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