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Mozilla Firefox "chrome:" Directory Traversal Security Issue
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Secunia Advisory:
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SA28622
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Release Date:
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2008-01-24
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Last Update:
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2008-02-12
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Critical:
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Less critical
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Impact:
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Security Bypass
Exposure of sensitive information
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Mozilla Firefox 2.0.x
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| | CVE reference: | CVE-2008-0418 (Secunia mirror)
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Description:
A security issue has been discovered in Mozilla Firefox, which can be exploited by malicious people to bypass certain security restrictions and disclose sensitive information.
The security issue is caused due to an error within the handling of "chrome:" URIs. This can be exploited to include arbitrary scripts from local resources via directory traversal attacks and reportedly allows disclosure of session cookie data and information about currently open web pages via the sessionstore.js file.
Successful exploitation requires that an extension, which doesn't store its contents inside a .jar file is installed.
The security issue is confirmed in version 2.0.0.11 for Windows. Other versions may also be affected.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to version 2.0.0.12.
http://www.mozilla.com/en-US/firefox/2.0.0.12/releasenotes/#download
Provided and/or discovered by:
Gerry Eisenhaur
Changelog:
2008-02-08: Updated "Solution" and "Original Advisory" sections.
2008-02-12: Added link to US-CERT and CVE reference. Updated "Description" with additional information from moz_bug_r_a4.
Original Advisory:
Mozilla Foundation:
http://www.mozilla.org/security/announce/2008/mfsa2008-05.html
http://www.hiredhacker.com/2008/01/19...ome-url-handling-directory-traversal/
Other References:
US-CERT VU#309608:
http://www.kb.cert.org/vuls/id/309608
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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