it sends this: 00508d917476000f1f550a6a080045000028000040004006b719c0a80101c0a8016500870cf000000000e556bd8d501400007bbe0000000000000000
Bobby35ny wrote: > You did the right thing Ian, no worries!! > I'm sure AL will take care of it. > > =bobby > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ian Shaffer > Sent: Monday, April 28, 2008 10:08 PM > To: Half-Life dedicated Win32 server mailing list > Subject: Re: [hlds] Critical "Nuke Attack" Exploit within Source engine > > Well at least Alfred's been notified of the issue. He told me he's > investigating the report. > > Brian D'Arcy wrote: > >> I'm afraid that this type of attack has been around since the late 90's, >> > if > >> not earlier. >> >> It's basically pounding random UDP data (or maybe now-days more structured >> data) at raw listen ports. The application listening does what it's >> programmed to do, parse the input and use up available resources in order >> > to > >> do so. >> >> There's not a whole lot any individual can do about this. The only thing >> > I > >> can see resolving this, assuming it becomes a widespread problem, is valve >> updating the query/response code to ignore the random data spewed at it in >> > a > >> much more efficient manner so that the only thing which occurs is a loss >> > of > >> some available bandwidth instead of the "melt" effect you see as servers >> start to choke out. >> >> In a nutshell, it's a DDOS tool, minus the distributed part. >> >> On Mon, Apr 28, 2008 at 6:17 PM, Ian Shaffer >> > <[EMAIL PROTECTED]> > >> wrote: >> >> >> >>> I just noticed that. Pity my hastiness. >>> >>> Daron Dodd wrote: >>> >>> >>>> you already did when u told everyone the name of the program in the >>>> first email. google is a very powerful tool. >>>> >>>> On Mon, Apr 28, 2008 at 6:07 PM, Ian Shaffer >>>> <[EMAIL PROTECTED]> wrote: >>>> >>>> >>>> >>>>> My big problem here is that I do not have root access to any of my >>>>> servers. We used to have all our servers on our own dedi, but BECAUSE >>>>> >>>>> >>> of >>> >>> >>>>> these attacks, we decided to scrap the dedi and spread our servers >>>>> across different IP ranges by paying per slot in different locations. >>>>> Even though we can still be attacked, the attack is limited to one >>>>> server at a time. That server is usually our Windows 50 man ZombieMod >>>>> server in Chicago. I'm currently working with the host to see if the >>>>> attack can be detected and blocked automatically. >>>>> >>>>> I've had a couple people email me asking for this "Nuker" program, or >>>>> the link to where to download it. I've notified Alfred of the issue and >>>>> sent him the link to the program, however he recommends that I be >>>>> careful at how I present my report to the non-moderated HLDS mailing >>>>> list. Hence, I will not give this program to ANYBODY unless on Alfred's >>>>> approval. >>>>> >>>>> >>>>> Chad Austin wrote: >>>>> >>>>> >>>>> >>>>>> Post a dump of packets please, or just link to program so it can be >>>>>> analyzed. >>>>>> >>>>>> Ian Shaffer wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Dear Network Administrator, >>>>>>> >>>>>>> Over the past few months my servers have been brought to their knees >>>>>>> dozens of times through "nuke" style Denial of Service attacks. >>>>>>> >>>>>>> >>> Simple >>> >>> >>>>>>> put, players start teleporting around, pings gradually start >>>>>>> >>>>>>> >>> increasing >>> >>> >>>>>>> for all players and the timer slows down. After a couple minutes of >>>>>>> being attacked, you are early frozen from movement and the timer >>>>>>> >>>>>>> >>> takes a >>> >>> >>>>>>> decade to tick down, and pings are skyrocketed. Players then leave >>>>>>> >>>>>>> >>> the >>> >>> >>>>>>> server. >>>>>>> >>>>>>> Well earlier this week I "interrogated," pardon the pun, a member of >>>>>>> >>>>>>> >>> my >>> >>> >>>>>>> community who had made an exclamation that it would start to get real >>>>>>> laggy in one of our servers earlier in the day. That server, our >>>>>>> >>>>>>> >>> Zombie >>> >>> >>>>>>> Server, started getting nuked just a couple minutes after. I was >>>>>>> >>>>>>> >>> fairly >>> >>> >>>>>>> certain it was him who started the attack. In the evening, I talked >>>>>>> >>>>>>> >>> to >>> >>> >>>>>>> this guy, his alias is "ST. GEORGE," and explained to him that I >>>>>>> believed it was him who was "nuking" our servers. I acted very >>>>>>> >>>>>>> >>> sincere >>> >>> >>>>>>> when I told him that I had logged his IP address and was planning on >>>>>>> filing a formal abuse complaint to his ISP, Road Runner. He somewhat >>>>>>> panicked at hearing this, and confessed as to what he was doing. >>>>>>> >>>>>>> He sent me a link to download the same hacking tool he said he was >>>>>>> using. Hackers Assistant is the program. I scanned the program for >>>>>>> >>>>>>> >>> any >>> >>> >>>>>>> trojans or viruses it might have, it was clean. I ran it and >>>>>>> >>>>>>> >>> discovered >>> >>> >>>>>>> a feature called "Nuker." In there it prompted for a server IP >>>>>>> >>>>>>> >>> address >>> >>> >>>>>>> and port and a box to input a message. One would simply put a >>>>>>> >>>>>>> >>> server's >>> >>> >>>>>>> info in there, type some random stuff in the message box, and click >>>>>>> >>>>>>> >>> "Nuke." >>> >>> >>>>>>> A former member of our community and admitted nuker "ST. GEORGE" >>>>>>> >>>>>>> >>> tested >>> >>> >>>>>>> the software. I was shocked. It was working, The server was being >>>>>>> attacked just as described above. I held a sense of accomplishment >>>>>>> knowing that I had found the cause of my problems. I therefore began >>>>>>> looking for a way to block this programs abilities. Now I needed to >>>>>>> >>>>>>> >>> know >>> >>> >>>>>>> what types of servers this program could attack. ST. GEORGE then >>>>>>> >>>>>>> >>> showed >>> >>> >>>>>>> off nuke attacks on dozens of popular servers in the US and UK, >>>>>>> >>>>>>> >>> highly >>> >>> >>>>>>> popular servers like 24/7 Office Noob Galore and Zombiemod | >>>>>>> XFactorGaming, and the program worked to bring down each and every >>>>>>> >>>>>>> >>> one >>> >>> >>>>>>> of them to their knees. There was only one server he was not able to >>>>>>> nuke attack, evidently the #1 CSS server in the United States, >>>>>>> CantStopGaming CS:S. >>>>>>> >>>>>>> This program affects practically every single server in CS:S. The >>>>>>> interesting part of it is that this program doesn't advise usage >>>>>>> >>>>>>> >>> towards >>> >>> >>>>>>> any particular genre of online infrastructure. ST. GEORGE tried >>>>>>> >>>>>>> >>> running >>> >>> >>>>>>> this program on CoD servers, BF2 and BF2142 servers, Halo PC servers, >>>>>>> SA:MP servers, and Quake 4 servers. It didn't work on any of those >>>>>>> games. However, it worked on the other popular Source-based game out >>>>>>> today, Team Fortress 2. Every TF2 server ST. GEORGE checked was >>>>>>> nuke-able, with the same effects felt in-game. This leads me to the >>>>>>> conclusion that there must be an exploit in the source engine >>>>>>> >>>>>>> >>> allowing >>> >>> >>>>>>> this program to nuke all servers using the source engine. >>>>>>> >>>>>>> While our server was getting attacked last time, I gathered critical >>>>>>> data. I've determined that the program does not eat up the server's >>>>>>> bandwidth. Instead, it seems to flood the server with >>>>>>> >>>>>>> >>> messages/commands, >>> >>> >>>>>>> so much that it tops out CPU usage. Below is a sample of my console >>>>>>> >>>>>>> >>> as >>> >>> >>>>>>> our server was undergoing a recent attack with the program. Midway >>>>>>> through the data, the perpetrator aborted the nuke attack. You can >>>>>>> >>>>>>> >>> see >>> >>> >>>>>>> the server recovering as the cpu usage goes down and server FPS comes >>>>>>> back to normal. This data was gathered with 8 others in-game. >>>>>>> >>>>>>> =========================================== >>>>>>> >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 96.59 16841.92 3909.91 110 4 10.00 9 >>>>>>> L 04/27/2008 - 01:23:04: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 96.04 17937.41 3958.69 110 4 10.00 9 >>>>>>> L 04/27/2008 - 01:23:09: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 95.54 17590.70 3970.64 110 >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 100.00 17354.72 3966.19 110 4 523.25 9 >>>>>>> L 04/27/2008 - 01:23:10: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ======== HERE THE ATTACK WAS ABORTED ========= >>>>>>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 75.57 16933.90 4148.69 110 4 508.36 9 >>>>>>> L 04/27/2008 - 01:23:11: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 75.57 16750.93 4596.00 110 4 509.13 9 >>>>>>> L 04/27/2008 - 01:23:12: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 52.55 16518.30 6391.86 110 4 509.97 9 >>>>>>> L 04/27/2008 - 01:23:13: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 40.46 16520.83 9229.05 110 4 511.77 9 >>>>>>> L 04/27/2008 - 01:23:13: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ] rcon stats >>>>>>> CPU In Out Uptime Users FPS Players >>>>>>> 40.46 16452.49 11473.37 110 4 514.49 9 >>>>>>> L 04/27/2008 - 01:23:14: rcon from "72.251.244.233:2020": command >>>>>>> >>>>>>> >>> "stats" >>> >>> >>>>>>> ============================================ >>>>>>> >>>>>>> >>>>>>> I very much hope that this exploit can be stomped out. My community >>>>>>> >>>>>>> >>> has >>> >>> >>>>>>> suffered all too much to the hands of the kiddies that run these >>>>>>> >>>>>>> >>> types >>> >>> >>>>>>> of programs for their own vain pleasure. I speak for server operators >>>>>>> everywhere when I say, this issue must be fixed! >>>>>>> >>>>>>> Thank you very much for taking the time to read my post. I hope some >>>>>>> good will come out of it! >>>>>>> >>>>>>> Sincerely, >>>>>>> David "Eaglewonj" Gaipa >>>>>>> >>>>>>> _______________________________________________ >>>>>>> To unsubscribe, edit your list preferences, or view the list >>>>>>> >>>>>>> >>> archives, please visit: >>> >>> >>>>>>> http://list.valvesoftware.com/mailman/listinfo/hlds >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> To unsubscribe, edit your list preferences, or view the list archives, >>>>>> >>>>>> >>> please visit: >>> >>> >>>>>> http://list.valvesoftware.com/mailman/listinfo/hlds >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> To unsubscribe, edit your list preferences, or view the list archives, >>>>> >>>>> >>> please visit: >>> >>> >>>>> http://list.valvesoftware.com/mailman/listinfo/hlds >>>>> >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> To unsubscribe, edit your list preferences, or view the list archives, >>>> >>>> >>> please visit: >>> >>> >>>> http://list.valvesoftware.com/mailman/listinfo/hlds >>>> >>>> >>>> >>>> >>> _______________________________________________ >>> To unsubscribe, edit your list preferences, or view the list archives, >>> please visit: >>> http://list.valvesoftware.com/mailman/listinfo/hlds >>> >>> >>> >> _______________________________________________ >> To unsubscribe, edit your list preferences, or view the list archives, >> > please visit: > >> http://list.valvesoftware.com/mailman/listinfo/hlds >> >> >> > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > http://list.valvesoftware.com/mailman/listinfo/hlds > > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, please > visit: > http://list.valvesoftware.com/mailman/listinfo/hlds > > _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds
