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- Sping Attack..What you should Know
- File Information was obtained from
- http://www.darkening.com/ssping
- ====================================
-
- What is it?
-
- SSPING/Jolt is a program which effectively will freeze of almost any Windows95 or
- Windows NT connection. It's based on old code which freezes old SysV and Posix
- implementations.
-
- It works basically by sending a series of spoofed & fragmented ICMP packets to the
- target, which build up to be a 64k ping, and Windows95/NT then ceases to function
- altogether.
-
- Who does it effect?
-
- This will affect almost all Windows95, Memphis and WindowsNT boxes which are
- not behind a firewall which blocks ICMP packets. We have heard reports of some
- computers not being effected however. This will also affect old MacOS machines
- too, and it's possible it is also useful against old SysV/POSIX implementations.
-
- Anyone who plays Quake or uses IRC has probably encountered an ssping/freeze
- attack before, and is encouraged to patch themselves.
-
- Why is this happening?
-
- I think the root of the problem is that Microsoft seems to always code via RFC, and
- doesn't write handlers for the "What if someone sends me something invalid"
- possibility. This is not the first time Windows95 or NT has had problems with ICMP,
- and if you would like to read the technical details, as well as look at the source code
- for Jolt, click here.
-
- How can I protect myself?
-
- We have some patches and information available here. A bugfix has been posted by Microsoft
- for NT4.0 I still haven't seen a Win95 or NT4 Workstation patch yet.
-
- Check this site for updates!
-