Opera CSLID extension spoof

opera-cslid-extension-spoof (21698) The risk level is classified as MediumMedium Risk

Description:

Opera could allow a remote attacker to spoof file types in the file download dialog. A remote attacker can embed a CSLID into the file name and trick Opera into opening a file type with a different application than specified. The attacker could exploit this vulnerability to possibly cause the victim to open malicious file types.


Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of Opera (7.50b1 or later), available from the Opera Download page. See References.

References:

  • Opera Download page: Download Opera Web Browser.
  • Opera Web site: Opera Web Browser.
  • BID-9640: Opera Web Browser CLSID File Extension Misrepresentation Vulnerability
  • CVE-2004-2083: Opera Web Browser 7.0 through 7.23 allows remote attackers to trick users into executing a malicious file by embedding a CLSID in the file name, which causes the malicious file to appear as a trusted file type, aka File Download Extension Spoofing.
  • OSVDB ID: 3917: Opera Browser File Download Extension Spoofing
  • SA10760: Opera Browser File Download Extension Spoofing

Platforms Affected:

  • Opera Opera Browser prior to 7.50

Reported:

Feb 11, 2004

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