CVE-2001-0183

Severity

75%

Complexity

99%

Confidentiality

106%

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

Type

FreeBSD

First reported 23 years ago

2001-03-26 05:00:00

Last updated 7 years ago

2017-10-10 01:29:00

Affected Software

FreeBSD 3.0

3.0

FreeBSD 3.1

3.1

FreeBSD 3.3

3.3

FreeBSD 3.4

3.4

FreeBSD 3.5

3.5

FreeBSD 3.5.1

3.5.1

FreeBSD 4.0

4.0

FreeBSD 4.1

4.1

FreeBSD 4.1.1

4.1.1

FreeBSD 4.2

4.2

References

FreeBSD-SA-01:08

Patch, Vendor Advisory

L-029

1743

20010125 ecepass - proof of concept code for FreeBSD ipfw bypass

2293

Exploit, Patch, Vendor Advisory

ipfw-bypass-firewall(5998)

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