Confluence Security Advisory 2007-12-14
In this advisory:
XSS Vulnerability in Configure RSS Feed Action
Atlassian rates this vulnerability as high, according to the scale published in Confluence Security. The scale allows us to rank a vulnerability as critical, high, moderate or low.
- The hacker might take advantage of this flaw to steal other users' session cookies or other credentials, by sending the credentials back to the hacker's own web server.
- The hacker's text and script might be displayed to other people viewing the Confluence page. This is potentially damaging to your company's reputation.
To fix the vulnerabilities described below, Atlassian recommends that you take one of the following steps:
- Upgrade to Confluence 2.7, or
- Download and install the patch for Confluence 2.5.8 or Confluence 2.6.2 from our JIRA site – see issue CONF-10164.
If you judge it necessary, you can disable public access (e.g. anonymous access and public signon) to your wiki until you have applied the necessary patch or upgrade. For even tighter control, you could restrict access to trusted groups only.
The above Confluence action is used to build an RSS feed based on your Confluence pages and news items. The action is invoked when a selects 'Feed Builder' from your Confluence Dashboard. It can also be invoked by simply entering the URL into the browser address bar.
These issues have been fixed in Confluence 2.7, which you can download from the download centre.
A patch is available for Confluence 2.5.8 and Confluence 2.6.2. For more information, please see CONF-10164.
Our thanks to jeff peichel, who reported this issue to Atlassian. We fully support the reporting of vulnerabilities and we appreciate his working with us towards identifying and solving the problem.
Please let us know what you think of the format of this security advisory and the information we have provided.