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Improve check for BASH HTTP modules #3897

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merged 3 commits into from
Sep 26, 2014
Merged

Improve check for BASH HTTP modules #3897

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3538b84
Try to make a better check
jvazquez-r7 Sep 26, 2014
0a3735f
Make it better
jvazquez-r7 Sep 26, 2014
3259509
Use return
jvazquez-r7 Sep 26, 2014
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19 changes: 17 additions & 2 deletions modules/auxiliary/scanner/http/apache_mod_cgi_bash_env.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -57,10 +57,25 @@ def check_host(ip)
:name => self.name,
:refs => self.references
)
Exploit::CheckCode::Vulnerable
return Exploit::CheckCode::Vulnerable
elsif res && res.code == 500
injected_res_code = res.code
else
Exploit::CheckCode::Safe
return Exploit::CheckCode::Safe
end

res = send_request_cgi({
'method' => datastore['METHOD'],
'uri' => normalize_uri(target_uri.path.to_s)
})

if res && injected_res_code == res.code
return Exploit::CheckCode::Unknown
elsif res && injected_res_code != res.code
return Exploit::CheckCode::Appears
end

Exploit::CheckCode::Unknown
end

def run_host(ip)
Expand Down
19 changes: 17 additions & 2 deletions modules/exploits/multi/http/apache_mod_cgi_bash_env_exec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -69,10 +69,25 @@ def check
res = req("echo #{marker}")

if res && res.body.include?(marker * 3)
Exploit::CheckCode::Vulnerable
return Exploit::CheckCode::Vulnerable
elsif res && res.code == 500
injected_res_code = res.code
else
Exploit::CheckCode::Safe
return Exploit::CheckCode::Safe
end

res = send_request_cgi({
'method' => datastore['METHOD'],
'uri' => normalize_uri(target_uri.path.to_s)
})

if res && injected_res_code == res.code
return Exploit::CheckCode::Unknown
elsif res && injected_res_code != res.code
return Exploit::CheckCode::Appears
end

Exploit::CheckCode::Unknown
end

def exploit
Expand Down