Re: [Full-disclosure] Goatse Security EMERGENCY RELEASE - RAMPANT VULNERABILITY SPREADING LIKE WILDFIRE

[adam <adam@xxxxxxxxx>]

"\001DCC SEND "loljewsdidwtc.jpg" 0 0 0"

Absolutely love the example filename.

On Tue, Jun 21, 2011 at 9:31 PM, Laurelai Storm <laurelai@xxxxxxxxxxxx>wrote:

> this vulnerability is very old
>
> On Tue, Jun 21, 2011 at 4:12 PM, DiKKy Heartiez <dikkyheartiez@xxxxxxxxxxx
> > wrote:
>
>>  We've just stumbled upon a few dangerous exploits which can be used in
>> conjunction to wreak havoc in online chatrooms, which could potentially be
>> very dangerous.
>>
>>
>> Home routers running VXWorks, such as the Netgear 614, 624, and Linksys
>> WRT54G v5 routers, allow remote attackers to cause a denial of service by
>> sending a malformed DCC SEND string to an IRC channel, which causes an IRC
>> connection reset, possibly related to the masquerading code for NAT
>> environments, and as demonstrated via (1) a DCC SEND with a single long
>> argument, or (2) a DCC SEND with IP, port, and filesize arguments with a 0
>> value.
>>
>>
>> Using such a string as
>>
>>
>> \001DCC SEND "hello.jpg" 0 0 0
>>
>>
>> would exploit this flaw.
>>
>>
>> This exploit is exacerbated by a buffer overflow vulnerability in mIRC
>> version 6.12 whereby using filename longer than fourteen characters will
>> cause the client to crash.  By combining these two flaws, we get
>>
>>
>> \001DCC SEND "loljewsdidwtc.jpg" 0 0 0
>>
>>
>> which will cause a Denial of Service condition in a minimum of four
>> products.
>>
>>
>> This would be bad enough, however users of Norton's Personal Firewall
>> product are faced with even more risk.  Symantec generally makes the BEST
>> security products on the market and we are very surprised that this slipped
>> through.  Norton's Personal Firewall will drop a connection if it detects
>> the string "startkeylogger" or "stopkeylogger" in incoming data.  This is to
>> prevent the spread of the new Spybot worm but also has unintended
>> consequences.  By using the string
>>
>>
>> \001DCC SEND "startkeylogger" 0 0 0
>>
>>
>> a Denial of Service condition is created on multiple hardware routers and
>> multiple software products.  Such exploits have been seen running rampant in
>> channels such as #lulzsec, #anonops, #ix, #nanog, #2600, and #phonelosers.
>>  Please be wary of any chats from unknown parties, and keep your software up
>> to date.  We will update you more as this situation unfolds.
>>
>>
>>
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>
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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>

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/