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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Firefox Wrapped 'javascript:' URLs Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1013963
SecurityTracker URL:  http://securitytracker.com/id/1013963
CVE Reference:   CVE-2005-1531   (Links to External Site)
Updated:  May 23 2005
Original Entry Date:  May 12 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.0.4
Description:   A vulnerability was reported in the Firefox web browser in the processing of 'javascript:' URLs. A remote user can bypass certain security checks.

A remote user can create a specially crafted 'view-source:' protocol URL or 'jar:' protocol URL that includes a 'javascript:' URL that, when loaded by the target user, will execute scripting code with privileges. Arbitrary code can be executed.

No further details were provided.

The vendor credits Michael Krax, Georgi Guninski, and L. David Baron with reporting this vulnerability.

Impact:   A remote user can cause arbitrary code to be executed on the target user's computer.
Solution:   The vendor has issued a fixed version (1.0.4), available at:

http://www.mozilla.org/products/firefox/

Vendor URL:  www.mozilla.org/security/announce/mfsa2005-43.html (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 21 2005 (Netscape Issues Fix) Firefox Wrapped 'javascript:' URLs Let Remote Users Execute Arbitrary Code
Netscape has issued a fix.
May 23 2005 (Red Hat Issues Fix) Firefox Wrapped 'javascript:' URLs Let Remote Users Execute Arbitrary Code
Red Hat has released a fix.



 Source Message Contents



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