LinuxQuestions.org
Go Job Hunting at the LQ Job Marketplace
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Security
User Name
Password
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

Notices

Reply
 
Search this Thread
Old 01-31-2002, 09:56 AM   #1
raz
Member
 
Registered: Apr 2001
Location: London
Posts: 408

Rep: Reputation: 31
Is someone trying to bring down UK Satellites??


Has anyone in the UK logged a port 1644 spoofed address today ?
Or does anyone know what the port 1644 would be use for ?

Basically my firewall picked up a very odd log today at 15:10 GMT from a spoofed address with a payload of some sort. It's targeted at a Satellite data acquisition system service, using a blind man attack and faked ACK and Seq id number.

Here's the log:
Jan 31 15:10:43 xxxx kernel: ** FAKE CLASS C** IN=eth0 OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:00:00
SRC=192.168.1.50 DST=xx.xx.xx.xx LEN=499 TOS=0x00 PREC=0x00 TTL=48 ID=8106 DF PROTO=TCP SPT=80 DPT=1644 WINDOW=16060 RES=0x00 ACK PSH URGP=0
(I've removed my ip and mac addresses, rest is real)

It says that the ip address 192.168.1.50 sent a packet to my external nic card's ip address with an ACK push flag "i.e already connected now receive my data" with a payload of 499 bytes "that's high" from a source port of 80 "i.e most firewalls allow httpd back".

It looks like someone is trying to get past a basic firewall with a payload of some sort to the "saiseh" service.
Can anyone shed some more light on what this service is?

/raz
 
Old 02-01-2002, 05:22 PM   #2
ryanstrayer
Member
 
Registered: Jan 2002
Location: Kansas City
Distribution: RedHat 7.2 Kernel 2.4.17
Posts: 250

Rep: Reputation: 30
You don't by chance have a mathmatics degree do you?
 
Old 02-12-2002, 09:27 AM   #3
raz
Member
 
Registered: Apr 2001
Location: London
Posts: 408

Original Poster
Rep: Reputation: 31
no cybernetics why ?
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
want to bring 2 ultra's on n/w live_dont_exist Solaris / OpenSolaris 3 06-27-2005 12:55 PM
Cannot bring up Eth0 jamespetts Linux - Networking 7 08-03-2004 05:42 AM
Toshiba Satellites' built in SD card slots. DrSkeezix Linux - Laptop and Netbook 0 07-23-2004 02:04 AM
can not bring up eth0 summerfish Linux - Networking 2 07-19-2004 10:09 PM
Bring Up the name daemon joseph Linux - Software 1 10-05-2003 01:59 AM


All times are GMT -5. The time now is 09:55 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration