HowTo, Segurança

Usando o Nikto webserver scanner

O Nikto é web server scanner escrito em perl usado para detectar vulnerabilidades em servidores web. Ele é muito simples de ser usado e atualizado gerando relatórios em txt,html e csv.

Baixando o Nikto

wget -c http://www.cirt.net/nikto/nikto-current.tar.gz

Não é necessário fazer a instalação do mesmo pois ele é um script perl.

Help do Nikto

-Cgidirs+ scan these CGI dirs: ‘none’, ‘all’, or values like “/cgi/ /cgi-a/”
-dbcheck check database and other key files for syntax errors (cannot be abbreviated)
-evasion+ ids evasion technique
-Format+ save file (-o) format
-host+ target host
-Help Extended help information
-id+ host authentication to use, format is userid:password
-mutate+ Guess additional file names
-output+ write output to this file
-port+ port to use (default 80)
-Display+ turn on/off display outputs
-ssl force ssl mode on port
-Single Single request mode
-timeout+ timeout (default 2 seconds)
-Tuning+ scan tuning
-update update databases and plugins from cirt.net (cannot be abbreviated)
-Version print plugin and database versions
-vhost+ virtual host (for Host header)
+ requires a value

Atualizando os plugins

./nikto.pl -update

Usando o Nikto

./nikto.pl -C all -host 200.128.X.X -o vitima.txt

– C all – Força a checagem de todos os diretórios em busca de cgi
– host – Ip da vitima
-o – Gera um arquivo de relatório

Relatório gerado

– Nikto 2.02/2.03 – cirt.net
+ Target IP: 200.128.X.X
+ Target Hostname: Vitima
+ Target Port: 80
+ Start Time: 2008-02-23 23:39:34
—————————————————————————
+ Server: Apache/2.0.54 (Win32) PHP/5.1.4
– Allowed HTTP Methods: GET, HEAD, POST, OPTIONS, TRACE
+ OSVDB-877: HTTP method (‘Allow’ Header): ‘TRACE’ is typically only used for debugging and should be disabled. This message does not mean it is vulnerable to XST.
+ Apache/2.0.54 appears to be outdated (current is at least Apache/2.2.6). Apache 1.3.39 and 2.0.61 are also current.
+ PHP/5.1.4 appears to be outdated (current is at least 5.2.5)
+ OSVDB-0: GET /………………/config.sys : PWS allows files to be read by prepending multiple ‘.’ characters. At worst, IIS, not PWS, should be used.
+ OSVDB-877: TRACE / : TRACE option appears to allow XSS or credential theft. See http://www.cgisecurity.com/whitehat-mirror/WhitePaper_screen.pdf for details
+ OSVDB-3092: GET /manual/ : Web server manual found.
+ OSVDB-3233: GET /index.html.var : Apache default foreign language file found. All default files should be removed from the web server as they may give an attacker additional system information.
+ OSVDB-3268: GET /icons/ : Directory indexing is enabled: /icons
+ OSVDB-3268: GET /manual/images/ : Directory indexing is enabled: /manual/images
+ OSVDB-6659: GET /h2vP3F1siX65X0gGCoedXf11K8PpZSTPQP599a3I4u0TTqw1nGlL616opBSyM7IxVsF3TVoyZtpH59PqXNhFuRiEw4wGseD97ZeeLbLfvLoQcijFLIvNLslTZt3nd687RcPNpahPUA2FAPgiuADL5939Ic4es2fwarKmkKfW2XJrkRrQtPaOMYZnPCGDzZ7pw8xJ8b56GiWdh2nxFw5GE8z6TOgSWfJDEFACED<!–//– : MyWebServer 1.0.2 is vulnerable to HTML injection. Upgrade to a later version.
+ 17457 items checked: 11 item(s) reported on remote host
+ End Time: 2008-02-24 0:32:00 (3192 seconds)
—————————————————————————
+ 1 host(s) tested

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