Re: Netscape Communicator 4.5 can read local files

From: Sven Carstens (sven@MSC-MEDIA.DE)
Date: Wed Nov 25 1998 - 12:58:46 PST

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    >I have just tested this bug in Netscape 4.5 on a RedHat Linux 5.1 machine,
    >Kermel 2.0.34 and with minor patching of the java, it is also effective.  I
    >was sucessful in retrieving ANY LOCAL FILE with the World readable
    >attribute. This includes the /etc/passwd file!  In netscape,
    >Edit>Preferences>Advanced>Disable Javascript in Mail and News will block
    >this exploit, unless the person has access to your web server.
    
    I tried it with Kernel 2.0.35 and Netscape 4.08.
    java40.jar is 1886016 bytes Okt 13 19:14
    
    All I get is this Message :
    
    JavaScript Error: uncaught Java exception
    netscape/security/AppletSecurityException
    ("security.checkread: Read of '/tmp/test'
    not permitted")
    



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