A vulnerability has been reported in various SonicWALL products, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed via a URL is not properly sanitised before being returned in a Content Filtering Service message that a site is blocked. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a requested site.
The vulnerability is reported in SonicWALL products running SonicOS versions prior to 184.108.40.206.
Solution: Update to SonicOS version 220.127.116.11 or later.
Provided and/or discovered by: Adrian Pastor, reported via ZDI
Original Advisory: ZDI:
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Subject: SonicWALL Products Content Filtering Service Cross-Site Scripting
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