Penetration Testing mailing list archives
Re: snmp vulnerablities
From: mht () clark net
Date: Mon, 16 Jul 2001 22:13:26 -0700
I have to agree with HC on this one, I can't remember echo being in the list of SNMP Basic functions :
1. GET REQUEST 2. GET NEXT REQUEST 3. SET REQUEST 4. GET RESPONSE 5. TRAP MESSAGEIs the original poster referring to an older type of networked device (i.e. OpenRoute, Proteon, Gator, WellFleet) that previously prompted the user with > in order to set the SNMP options???
*scratching head** At 03:01 PM 7/16/2001 -0700, Ron Russell wrote:
I cannot speak to the echo reference as well. If he would like to expound on it I would be most happy to listen. And the activity could have been prevented by proper use of ACLs, and the proper configuration of SNMP (not using easily guessable strings). I'm also sure that there are similar vulnerabilities across server and switch platforms, but I have not had the privilege of scanning one. Ron Russell - MCSE, CCNA, CNE 480-6-Buddha Silicon Buddha LLC Enlightened Network Services www.siliconbuddha.com Offering Free Vulnerability Assessments from the deserts of Phoenix Arizona ----- Original Message ----- From: "H C" <keydet89 () yahoo com> To: "Ron Russell" <ron () siliconbuddha com>; <pen-test () securityfocus com> Sent: Monday, July 16, 2001 1:56 PM Subject: Re: snmp vulnerablities Ron, Very interesting input regarding SNMP, though I'm not really too clear on what it has to do with the original author's use of 'echo' statements in an SNMP utility. One question though...when you downloaded the router config, could this activity have been prevented by proper configuration of the router itself? Since you didn't specify the method used (SNMP?), I thought I'd ask for clarification. Thanks, Carv --- Ron Russell <ron () siliconbuddha com> wrote: > SNMP can also be used to write configuration > parameters to Cisco Routers as > well (assuming you have the read/write community > string). I have actually > successfully downloaded a router config, unencrypted > the hash for the > passwords, and telnetted into the router. I'm sure > that there are multiple > other security vulnerabilities here as well. > > Ron Russell - MCSE, CCNA, CNE > 480-6-Buddha > Silicon Buddha LLC > Enlightened Network Services > www.siliconbuddha.com > Offering Free Vulnerability Assessments from the > deserts of Phoenix Arizona > ----- Original Message ----- > From: "H Carvey" <keydet89 () yahoo com> > To: <pen-test () securityfocus com> > Sent: Saturday, July 14, 2001 6:50 AM > Subject: Re: snmp vulnerablities > > > > Hi there. how do you exploit or gain access > from vulnerable host using snmp > vulnerablities. I've tried to used this command > but its not work : > > > > I'm not sure why you would try sending 'echo' > commands to the SNMP agent...do any agents > have a vulnerability that will allow them to > write to the drive? > > I have always seen SNMP as a great recon > protocol, especially when it is misconfigured > (ie, default community strings, no restrictions > on management stations, etc). On Win2K, you > can enum usernames, services, TCP/UDP info, > etc. > > Systems running SNMP can divulge > information...if they are misconfigured. This > is why many people call SNMP a 'dangerous' > protocol. As with anything else, some simple > configuration steps can fix that. Yes, if > someone installs a sniffer and captures some > datagrams containing your SNMPv1 read-write > community string, you could most definitely > have problems (though I doubt that those > problems include the ability to write to the > drive). However, if someone is able to load a > sniffer on your network, you've got other > problems to worry about... > > ---------------------------------------------------------------------------- > This list is provided by the SecurityFocus Security > Intelligence Alert (SIA) > Service For more information on SecurityFocus' SIA > service which > automatically alerts you to the latest security > vulnerabilities please see: > https://alerts.securityfocus.com/ > > __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
Current thread:
- snmp vulnerablities slash underground (Jul 13)
- <Possible follow-ups>
- Re: snmp vulnerablities H Carvey (Jul 16)
- Re: snmp vulnerablities Ron Russell (Jul 16)
- Re: snmp vulnerablities H C (Jul 16)
- Re: snmp vulnerablities Ron Russell (Jul 16)
- Re: snmp vulnerablities mht (Jul 17)
- Re: snmp vulnerablities Jon DeShirley (Jul 17)
- Re: snmp vulnerablities Peter Van Epp (Jul 17)
- Re: snmp vulnerablities mht (Jul 17)
- Re: snmp vulnerablities Dave Ryan (Jul 17)
- Re: snmp vulnerablities Ron Russell (Jul 16)
- Re: snmp vulnerablities Ron Russell (Jul 17)
- RE: snmp vulnerabilities Dom De Vitto (Jul 22)