Nmap Development mailing list archives
Re: SNMP Detection
From: Daniel Miller <bonsaiviking () gmail com>
Date: Wed, 29 Mar 2017 10:28:01 -0500
Gisle, Tim, I introduced this bug recently when I switched from bin.unpack("H") to stdnse.tohex() because the first converts to uppercase hex and the second to lowercase. I've fixed it in this instance by changing string literals to lowercase, and will be revisiting the changes I made elsewhere to make sure similar problems don't crop up. Dan On Tue, Mar 28, 2017 at 5:00 AM, Gisle Vanem via dev <dev () nmap org> wrote:
Tim Naami wrote:I have a target with SNMP working and I have confirmed it is respondingusing snmpwalk.When I use: nmap -sU -p 161 --script=snmp-interfaces 10.255.22.222 I get: Starting Nmap 7.01 ( https://nmap.org ) at 2017-03-21 11:45 CDT Nmap scan report for testuser-pc.rhsnet.org <http://testuser-pc.rhsnet.org> (10.255.22.222)Host is up (0.00053s latency). PORT STATE SERVICE 161/udp open|filtered snmpI think the snmp-interface.lua script is not up-to-date. Because I get: c:\> nmap -d -sU -p 161 --script=snmp-interfaces 10.0.0.1 NSE: [snmp-interfaces 10.0.0.1:161] no decoder for etype: a2 NSE: snmp-interfaces against router (10.0.0.1:161) threw an error! f:\MingW32\src\inet\nmap/nselib/snmp.lua:398: attempt to index a number value (field '?') stack traceback: f:\MingW32\src\inet\nmap/nselib/snmp.lua:398: in function 'snmp.fetchResponseValues' f:\MingW32\src\inet\nmap/nselib/snmp.lua:513: in method 'getnext' f:\MingW32\src\inet\nmap/nselib/snmp.lua:557: in method 'walk' f:\MingW32\src\inet\nmap/scripts\snmp-interfaces.nse:430: in function <f:\MingW32\src\inet\nmap/scripts\snmp-interfaces.nse:397> (...tail calls...) Completed NSE at 09:47, 0.10s elapsed Nmap scan report for router (10.0.0.1) Host is up, received arp-response (0.00018s latency). Scanned at 2017-03-28 09:47:43 CET for 1s PORT STATE SERVICE REASON 161/udp open snmp udp-response ttl 64 MAC Address: 1C:BD:B9:C0:63:C6 (D-Link International) Final times for host: srtt: 182 rttvar: 4114 to: 100000 -------- But snmp-info.lua works fine. Since I know very little of Lua, I'm at loss as to what is wrong. But I guess the ASN1 decoder should be extended somehow. -- --gv _______________________________________________ Sent through the dev mailing list https://nmap.org/mailman/listinfo/dev Archived at http://seclists.org/nmap-dev/
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Current thread:
- SNMP Detection Tim Naami (Mar 27)
- Re: SNMP Detection Gisle Vanem via dev (Mar 28)
- Re: SNMP Detection Daniel Miller (Mar 29)
- Re: SNMP Detection Daniel Miller (Mar 29)
- Re: SNMP Detection Gisle Vanem via dev (Mar 30)
- Re: SNMP Detection Daniel Miller (Mar 29)
- Re: SNMP Detection Gisle Vanem via dev (Mar 28)
- <Possible follow-ups>
- Re: SNMP Detection Varunram Ganesh via dev (Mar 28)