Re: http NSE errors

[Patrik Karlsson <patrik () cqure net>]

On Thu, Aug 30, 2012 at 9:45 PM, Christopher Clements <
christopher.a.clements () gmail com> wrote:

> A handful of other http NSE errors I've received during scanning:
>
>
> NSE: 'http-title' (thread: 0x39dc710) against xx.xx.xx.81:443 threw an
> error!
> /usr/local/bin/../share/nmap/scripts/http-title.nse:55: bad argument #1 to
> 'match' (string expected, got nil)
> stack traceback:
> [C]: in function 'match'
> /usr/local/bin/../share/nmap/scripts/http-title.nse:55: in function
> </usr/local/bin/../share/nmap/scripts/http-title.nse:41>
> (...tail calls...)
>
> NSE: 'http-affiliate-id' (thread: 0x39127e0) against xx.xx.xx.81:443 threw
> an error!
> /usr/local/bin/../share/nmap/scripts/http-affiliate-id.nse:97: bad argument
> #1 to 'match' (string expected, got nil)
> stack traceback:
> [C]: in function 'match'
> /usr/local/bin/../share/nmap/scripts/http-affiliate-id.nse:97: in function
> </usr/local/bin/../share/nmap/scripts/http-affiliate-id.nse:89>
> (...tail calls...)
>
>
> NSE: 'http-waf-detect' (thread: 0x3a09860) against xx.xx.xx.81:443 threw an
> error!
> /usr/local/bin/../share/nmap/nselib/http.lua:2177: bad argument #1 to
> 'gsub' (string expected, got nil)
> stack traceback:
> [C]: in function 'gsub'
> /usr/local/bin/../share/nmap/nselib/http.lua:2177: in function 'clean_404'
> /usr/local/bin/../share/nmap/scripts/http-waf-detect.nse:75: in function
> </usr/local/bin/../share/nmap/scripts/http-waf-detect.nse:66>
> (...tail calls...)
>
>
> NSE: 'http-trace' (thread: 0x39e2490) against xx.xx.xx.81:443 threw an
> error!
> /usr/local/bin/../share/nmap/scripts/http-trace.nse:41: attempt to index
> local 'response' (a nil value)
> stack traceback:
> /usr/local/bin/../share/nmap/scripts/http-trace.nse:41: in function
> </usr/local/bin/../share/nmap/scripts/http-trace.nse:38>
> (...tail calls...)
>
>
> NSE: 'http-slowloris-check' (thread: 0x2e0c060) against xx.xx.xx.110:80
> threw an error!
> ...local/bin/../share/nmap/scripts/http-slowloris-check.nse:138: attempt to
> perform arithmetic on upvalue 'TimeWith' (a nil value)
> stack traceback:
> ...local/bin/../share/nmap/scripts/http-slowloris-check.nse:138: in
> function <...local/bin/../share/nmap/scripts/http-slowloris-check.nse:101>
> (...tail calls...)
>
>
> NSE: 'http-generator' (thread: 0x39705c0) against xx.xx.xx.81:443 threw an
> error!
> /usr/local/bin/../share/nmap/scripts/http-generator.nse:81: attempt to
> index field 'body' (a nil value)
> stack traceback:
> /usr/local/bin/../share/nmap/scripts/http-generator.nse:81: in function
> </usr/local/bin/../share/nmap/scripts/http-generator.nse:66>
> (...tail calls...)
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Thanks for the report. I believe the errors were all related to improper
responses (empty responses) from a web server.
I think I've addressed them all and committed the changes as r29705.

Thanks,
Patrik

-- 
Patrik Karlsson
http://www.cqure.net
http://twitter.com/nevdull77
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