Re: "LAND" Attack Update

Ian C. Reandeau (Ianr@TENFORWARD.COM)
Thu, 20 Nov 1997 14:58:54 -0800

With some testing, it seems that the VTCPUPD update does seem to fix the problems
with 95 on port 139, on the other hand, if you have any other services running,
like FTP or HTTP, the machine can be crashed through those ports.

Aleph One wrote:

> This test where againts the "land" attack. This is _NOT_ about "teardrop".
>
> BSDI 2.1 (vanilla) IS vulnerable
> BSDI 2.1 (K210-021,K210-022,K210-024) NOT vulnerable
> BSDI 3.0 NOT vulnerable
> Digital UNIX 4.0 NOT vulnerable
> FreeBSD 2.2.2-RELEASE IS vulnerable
> FreeBSD 2.2.5-RELEASE IS vulnerable
> FreeBSD 2.2.5-STABLE IS vulnerable
> FreeBSD 3.0-CURRENT IS vulnerable
> HP-UX 10.20 IS vulnerable
> IRIX 6.2 NOT vulnerable
> Linux 2.0.30 NOT vulnerable
> Linux 2.0.32 NOT vulnerable
> MacOS 8.0 IS vulnerable (TCP/IP stack crashed)
> NetBSD 1.2 IS vulnerable
> NeXTSTEP 3.0 IS vulnerable
> NeXTSTEp 3.1 IS vulnerable
> Novell 4.11 NOT vulnerable
> OpenBSD 2.1 IS vulnerable
> OpenBSD 2.2 (Oct31) NOT vulnerable
> SCO OpenServer 5.0.4 NOT vulnerable
> Solaris 2.5.1 IS vulnerable (conflicting reports)
> SunOS 4.1.4 IS vulnerable
> Windows 95 (vanilla) IS vulnerable
> Windows 95 + Winsock 2 + VIPUPD.EXE IS vulnerable
>
> Some misc stuff:
>
> Ascend Pipeline 50 rev 5.0Ap13 NOT vulnerable
> NCD X Terminals, NCDWare v3.2.1 IS vulnerable
> LaserJet Printer NOT vulnerable
>
> We got reports that applying the VTCPUPD update (originally the OOB attack
> update) when applied to Windows 95 running Winsock 2 fixes the problem.
> You may want to try it. You can download Vtcpupd.exe you
>
> http://support.microsoft.com/download/support/mslfiles/Vtcpupd.exe
>
> Thanks to Gonzo Granzeau <bygranz@rs6000.cmp.ilstu.edu> for pointing
> out the Windows 95 possible fix. Thanks to everyone else (to many to
> mention).
>
> Aleph One / aleph1@dfw.net
> http://underground.org/
> KeyID 1024/948FD6B5
> Fingerprint EE C9 E8 AA CB AF 09 61 8C 39 EA 47 A8 6A B8 01

--
==========================================
Ian C. Reandeau
Ten Forward Communications
http://www.tenforward.com
==========================================
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