CVE-2002-0276

CVE-2002-0276 describes a buffer overflow in various decoders of Ettercap ≤ 0.6.3.1 when running on networks with MTU > 2000, allowing remote attackers to execute arbitrary code via large packets. The entry specifies the affected software (Ettercap) and version range, the root cause (buffer ov...

ettercap-0.6.3.txt

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Next Generation Security Technologies http://www.ngsec.com Security Advisory Title: Ettercap, remote root compromise ID: NGSEC-2002-1 Application: ettercap 0.6.3.1 and older http://ettercap.sourceforge.net Date: 05/02/2002 Status: Vendor Contacted, ne...

Переполнение буфера в Ettercap (buffer overflow)

Переполнение буфера при разборе пакета если MTU 2000...

Ettercap 0.6.3.1 - Large Packet Buffer Overflow

// source: https://www.securityfocus.com/bid/4104/info Ettercap is a multipurpose packet sniffer for Linux and BSD based systems. It includes support for features such as character injection and packet filtering. Ettercap has been ported to Windows. A remotely exploitable buffer overflow conditio...

CVE-2001-0323

The ICMP path MTU PMTU discovery feature in various UNIX systems allows remote attackers to cause a denial of service by spoofing "ICMP Fragmentation needed but Don't Fragment DF set" packets between two target hosts, which could cause one host to lower its MTU when transmitting to the other host...

CVE-2001-0323

The CVE-2001-0323 entry describes a denial-of-service risk in the ICMP path MTU (PMTU) discovery feature used by various UNIX systems. The underlying issue is that remote attackers can spoof ICMP messages of type “Fragmentation needed but Don’t Fragment (DF) set” between two hosts, potentially ca...

CVE-2001-0323

The ICMP path MTU PMTU discovery feature in various UNIX systems allows remote attackers to cause a denial of service by spoofing "ICMP Fragmentation needed but Don't Fragment DF set" packets between two target hosts, which could cause one host to lower its MTU when transmitting to the other host...

ICMP fragmentation required but DF set problems.

Hi all, The problem I'm exposing is quite obvious, but unfortunatelly can be used in a very simple way by script kiddies. SYNOPSIS It's possible to slowdown a lot connections between two arbirary hosts but at least one with the PMTU discovery enabled using some spoofed TCP/IP packet. Maybe you ca...

Re: ICMP fragmentation required but DF set problems.

This is a valid method, and known, to slow down a link between two hosts. In my paper "ICMP Usage In Scanning" currently version 2.5 Appendix B: ICMP "Fragmentation Needed but the Don't Fragment Bit was set" and the Path MTU Discovery Process Page 132, I have outlined what should be done accordin...