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Network Security Snort-Signatures
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[Snort-sigs] False +ves for SID 2657 :EXPLOIT SSLv2 Client_Hello with pa

Subject: [Snort-sigs] False +ves for SID 2657 :EXPLOIT SSLv2 Client_Hello with pad Challenge Length overflow attempt
Date: Wed, 15 Dec 2004 11:05:07 +1300
Hi I am seeing about 2500 of these a day between two 'trusted' systems:

META
--------
SID     CID     TimeStamp               Signature
7       203852  2004-12-14 11:03:32     EXPLOIT SSLv2 Client_Hello with pad 
Challenge Length overflow attempt
Sig ID
2657

IP
--------
Source Address  Dest Address    Ver     Hdr Len
130.216.120.4   130.216.74.4    4       5
TOS     length  ID      flags   offset  TTL     chksum
0       313     18880   2       0       64      10310

Resolved Source
ctru.auckland.ac.nz

Resolved Dest
www.ctru.auckland.ac.nz 

TCP
--------
Source Port     Dest Port       Seq             Ack             
3828            443             295974195       4027509575
Offset  Reserved        Flags   Window  Checksum        Urgent Ptr
8       0               24      31856   50184           0

Options
--------
None


Flags
--------
RB 1    RB 0    URG     ACK     PSH     RST     SYN     FIN
                        X       X                               

DATA
--------
1703010100F91C09F180    ..........
D57D76CD8D2B569CA8E3    .}v..+V...
FDC5D0C1358B6DE3BADA    ....5.m...
A458EA9F3F8E9B674525    .X..?..gE%
B49262F5059798D49EC1    ..b.......
61C50BC5723BEEAE90C0    a...r;....
31277D130476E72314BB    1'}..v.#..
BE0A67F12EBDFB4CBC98    ..g....L..
78312C8797AE994C3405    x1,....L4.
E726B3193FAF9F936E26    .&..?...n&
55D3803BB6E8C13CE856    U..;...<.V
B553976337342C6B4C02    .S.c74,kL.
9663D2035F55B4BB0747    .c.._U...G
0C0A7402648BE7546006    ..t.d..T`.
EA3029160340075CF9B1    .0)..@.\..
436653BC7C5B2F572345    CfS.|[/W#E
15AD18E556722931FEA3    ....Vr)1..
0F5765FC4CFCABE750B6    .We.L...P.
68A38293064449EF7446    h....DI.tF
3F89B5998983E2B14465    ?.......De
A45674BB55A527AF385E    .Vt.U.'.8^
47D92E0ECF94DA07D7E0    G.........
5EC100549B4B586AEE36    ^..T.KXj.6
E354B07307593902D429    .T.s.Y9..)
3151F50D3227B08CD179    1Q..2'...y
B978C14A73789EE79355    .x.Jsx...U
6D      m



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