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rexec-brute.nse returns false positives #1090

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zjtmcozs opened this issue Dec 20, 2017 · 2 comments
Closed

rexec-brute.nse returns false positives #1090

zjtmcozs opened this issue Dec 20, 2017 · 2 comments

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@zjtmcozs
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zjtmcozs commented Dec 20, 2017 •
edited

The rexec-brute.nse script reports username:password combinations as "valid credentials" even though the response from the server is "rexecd: Login incorrect".

After looking at the source of the script it looks like it reports every tried user:pass combination as valid as long as the server sends a response. (https://svn.nmap.org/nmap/scripts/rexec-brute.nse)
@E3V3A
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E3V3A commented Dec 29, 2017

The local link to rexec-brute.nse.
Do you know how to fix it? Then submit a PR.

@egypt
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egypt commented Jan 13, 2018

Ran into this today. Modified the script to print the response and it looks like the server is sending "Authentication failed for user GUEST." which obviously isn't a successful execution.

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@E3V3A @egypt @zjtmcozs