Published: 18/08/2003 Updated: 20/11/2024

Cisco IOS 11.x and 12.0 up to and including 12.2 allows remote malicious users to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.

Vulnerable Product	Search on Vulmon	Subscribe to Product
cisco ios 11.0
cisco ios 11.1
cisco ios 11.1aa
cisco ios 11.1ca
cisco ios 11.1cc
cisco ios 11.2
cisco ios 11.2p
cisco ios 11.2sa
cisco ios 11.3
cisco ios 11.3t
cisco ios 12.0
cisco ios 12.0da
cisco ios 12.0db
cisco ios 12.0dc
cisco ios 12.0s
cisco ios 12.0sc
cisco ios 12.0sl
cisco ios 12.0sp
cisco ios 12.0st
cisco ios 12.0sx
cisco ios 12.0sy
cisco ios 12.0sz
cisco ios 12.0t
cisco ios 12.0w5
cisco ios 12.0wc
cisco ios 12.0wt
cisco ios 12.0xa
cisco ios 12.0xb
cisco ios 12.0xc
cisco ios 12.0xd
cisco ios 12.0xe
cisco ios 12.0xf
cisco ios 12.0xg
cisco ios 12.0xh
cisco ios 12.0xi
cisco ios 12.0xj
cisco ios 12.0xk
cisco ios 12.0xl
cisco ios 12.0xm
cisco ios 12.0xn
cisco ios 12.0xp
cisco ios 12.0xq
cisco ios 12.0xr
cisco ios 12.0xs
cisco ios 12.0xu
cisco ios 12.0xv
cisco ios 12.0xw
cisco ios 12.1
cisco ios 12.1aa
cisco ios 12.1ax
cisco ios 12.1ay
cisco ios 12.1da
cisco ios 12.1db
cisco ios 12.1dc
cisco ios 12.1e
cisco ios 12.1ea
cisco ios 12.1eb
cisco ios 12.1ec
cisco ios 12.1ev
cisco ios 12.1ew
cisco ios 12.1ex
cisco ios 12.1ey
cisco ios 12.1m
cisco ios 12.1t
cisco ios 12.1xa
cisco ios 12.1xb
cisco ios 12.1xc
cisco ios 12.1xd
cisco ios 12.1xe
cisco ios 12.1xf
cisco ios 12.1xg
cisco ios 12.1xh
cisco ios 12.1xi
cisco ios 12.1xj
cisco ios 12.1xk
cisco ios 12.1xl
cisco ios 12.1xm
cisco ios 12.1xp
cisco ios 12.1xq
cisco ios 12.1xr
cisco ios 12.1xs
cisco ios 12.1xt
cisco ios 12.1xu
cisco ios 12.1xv
cisco ios 12.1xw
cisco ios 12.1xx
cisco ios 12.1xy
cisco ios 12.1xz
cisco ios 12.1yb
cisco ios 12.1yc
cisco ios 12.1yd
cisco ios 12.1ye
cisco ios 12.1yf
cisco ios 12.1yh
cisco ios 12.1yi
cisco ios 12.1yj
cisco ios 12.2
cisco ios 12.2b
cisco ios 12.2bc
cisco ios 12.2bw
cisco ios 12.2bx
cisco ios 12.2bz
cisco ios 12.2cx
cisco ios 12.2cy
cisco ios 12.2da
cisco ios 12.2dd
cisco ios 12.2dx
cisco ios 12.2ja
cisco ios 12.2mb
cisco ios 12.2mc
cisco ios 12.2mx
cisco ios 12.2s
cisco ios 12.2sx
cisco ios 12.2sy
cisco ios 12.2sz
cisco ios 12.2t
cisco ios 12.2xa
cisco ios 12.2xb
cisco ios 12.2xc
cisco ios 12.2xd
cisco ios 12.2xe
cisco ios 12.2xf
cisco ios 12.2xg
cisco ios 12.2xh
cisco ios 12.2xi
cisco ios 12.2xj
cisco ios 12.2xk
cisco ios 12.2xl
cisco ios 12.2xm
cisco ios 12.2xn
cisco ios 12.2xq
cisco ios 12.2xr
cisco ios 12.2xs
cisco ios 12.2xt
cisco ios 12.2xu
cisco ios 12.2xw
cisco ios 12.2ya
cisco ios 12.2yb
cisco ios 12.2yc
cisco ios 12.2yd
cisco ios 12.2yf
cisco ios 12.2yg
cisco ios 12.2yh
cisco ios 12.2yj
cisco ios 12.2yk
cisco ios 12.2yl
cisco ios 12.2ym
cisco ios 12.2yn
cisco ios 12.2yo
cisco ios 12.2yp
cisco ios 12.2yq
cisco ios 12.2yr
cisco ios 12.2ys
cisco ios 12.2yt
cisco ios 12.2yu
cisco ios 12.2yv
cisco ios 12.2yw
cisco ios 12.2yx
cisco ios 12.2yy
cisco ios 12.2yz
cisco ios 12.2za
cisco ios 12.2zb
cisco ios 12.2zc
cisco ios 12.2zd
cisco ios 12.2ze
cisco ios 12.2zf
cisco ios 12.2zg
cisco ios 12.2zh
cisco ios 12.2zj
cisco optical networking systems software 3.0
cisco optical networking systems software 3.1.0
cisco optical networking systems software 3.2.0
cisco optical networking systems software 3.3.0
cisco optical networking systems software 3.4.0
cisco optical networking systems software 4.0.0
cisco ons 15454 optical transport platform

#!/bin/tcsh -f # # Remote DoS exploit against the recent Cisco IOS vuln Cisco doc 44020 # Vulnerable versions - all Cisco devices running IOS # Requirements : tcsh, and hping # Get hping @ wwwhpingorg # # And you know the best part? This script actually works! Unlike the few c's # floating around the net Uses swipe for the protocol bit Al ...

/* * ShadowChode - Cisco IOS IPv4 Packet Processing Denial of Service Exploit * * Ping target router/switch for TTL to host Subtract that number from 255 * and use that TTL on the command line The TTL must equal 0 or 1 when it * reaches the target The target must accept packets to the given target * interface address and there are some other cav ...

/*******************************************************/ /* cisco-bug-44020c - Copyright by Martin Kluge (martin@elxside) */ /* */ /* Feel free to modify this code as you like, as long as you include */ /* the above copyright statement ...

https://nvd.nist.gov https://www.exploit-db.com/exploits/62/https://www.kb.cert.org/vuls/id/411332

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CVE-2003-0567

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