This issue can affect all NetScreen IDP stand-alone platforms running IDP OS 5.1.

A username enumeration issue has been found in the Juniper Networks IDP stand alone product. The problem is a result of incorrect configuration of the Apache webserver daemon. This misconfiguration allows the Apache web server to confirm if a given username is valid on the system. Juniper SIRT is not aware of any malicious exploitation of this vulnerability.No other Juniper Networks products or platforms are affected by this issue.This issue has been assigned CVE-2001-1013.The fix for this issue requires a configuration change. The following steps must be followed in order to fix the issue:1) Log on as root (if via ssh, use admin, and then su – to root)2) Use a text editor to edit /etc/httpd/conf/httpd.conf3) Locate the following lines:SuexecUserGroup root root    UserDir public_html</IfModule>4) Change the config to reflect the following:SuexecUserGroup root root   UserDir Disabled</IfModule>5) Finally, you need to restart the services on the device:[root@defaulthost ~]# sh /etc/rc.d/init.d/httpd restartStopping httpd:[OK]Starting httpd:[OK][root@defaulthost ~]#KB16765 – “In which releases are vulnerabilities fixed?” describes which release vulnerabilities are fixed as per our End of Engineering and End of Life support policies.The steps outlined in the solution are the only fix for this issue. There are no other workarounds.

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