We are aware it's fixable with SM+MM but there are servers that can not,
want not or simply do not run those. This is a critical vulnerability.


On Mon, Sep 16, 2013 at 4:24 AM, Collin Howard <[email protected]> wrote:

> Hi:
>
> https://forums.alliedmods.net/showthread.php?t=225925
>
>   ------------------------------
>  *From:* lilly <[email protected]>
> *To:* [email protected]
> *Sent:* Sunday, September 15, 2013 4:10:51 PM
> *Subject:* [Csgo_servers] Please Fix this Valve!! Exploit!!! Many
> Communities are getting hit with Ads
>
> This is a big issue, please fix this!!
>
>
> http://www.reddit.com/tb/1mfgky
>
> Old 09-11-13 , 12:15 AM  Warning to people running CS:GO servers
>     Reply With Quote Multi-Quote This Message Quick reply to this message
> #1
> A number of communities have been hit by at least one person abusing the
> fact CS:GO's engine is lacking the fixes Valve made in the 2009 engine for
> file transfers.
>
> This means that it's possible for a malicious person to
>
>     Download a number of files from the gameserver (it's unknown at this
> time if the engine is vulnerable to bypassing the extension blacklist).
>     Upload a number of files to the gameserver (see note above).
>     "Delete" a file by overwriting it with a folder.
>
>
> There is an extension created by Zephyrus to combat this exploit available
> here.
>
> There is a plugin that is being upload to game servers that will display
> hidden ads to clients.
> The ad provider username in use by this individual is "bazdmegjo", please
> contact me privately if you have any further information about who this
> individual may be.
>
> Known versions:
>
>         Filename: "basechats.smx" (note the 's' on the end)
>         File MD5 Hash: bd493c03a0115f704eaa96a0e1d8400e
>         Plugin Hash: 1f37a04083b593f5b024888a1dfbfe7d
>         Filename: "adminhelp.smx"
>         File MD5 Hash: 34ea070da0e8d820e7e1b5285d0a7db1
>         Plugin Hash: 4f3b8f9131ac3de3c4abfd21ca61c237
>
>
> The "Plugin Hash" in the list above refers to the "Hash:" line seen in the
> "sm plugins info" output if you're running a version of SourceMod with the
> malicious plugin blacklist (most 1.5.0-dev snapshots, 1.5.0 and later, and
> all 1.6.x snapshots) - if you're hosting CS:GO servers, I suggest making
> sure you are.
>
> The binaries above have already been pushed out to SourceMod's plugin
> blacklist - if you see any plugins fail to load because of this, please
> make
> sure to check all your other plugins.
>
> The 2nd one (adminhelp.smx) appears to be the more refined plugin and was
> likely a later attempt by the exploiter. It also attempts to replicated
> itself to "votemenus.smx", although due to a bug in the code this
> fortunately fails. It is highly likely that the person involved in these
> actions will make continued attempts, so please be vigilant.
>
> Checking your server (using the 'find' command) for the cvars "sm_ad_url"
> and "sm_xchat_name" may help to find other instances of the malicious
> plugin
> - please note these were both reused from legitimate plugins, so do not
> indicate malicious activity alone.
>
> If you find any strange plugins on your server that are trying to
> impersonate base SM plugins, please PM them to me - they're only going to
> get harder to spot from here on in.
>
> Some of you may remember a similar thread to this from almost a year
> ago...
>
>
>
> -----
> ClanVPP.com
>
> 32 man Chicago 74.121.181.87:27015
> 26 man DM 216.231.130.101:26015
> 24 man Dallas 66.34.220.7:27015
> 24 man 24/7 Dust2 216.231.130.101:27025
> --
> View this message in context:
> http://csgo-servers.1073505.n5.nabble.com/Please-Fix-this-Valve-Exploit-Many-Communities-are-getting-hit-with-Ads-tp5417.html
> Sent from the CSGO_Servers mailing list archive at Nabble.com.
>
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