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Vulnerability Details : CVE-2001-0183

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.
Publish Date : 2001-03-26 Last Update Date : 2017-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Bypass a restriction or similar
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2001-0183

# Product Type Vendor Product Version Update Edition Language
1 OS Freebsd Freebsd 3.0 * * * Version Details Vulnerabilities
2 OS Freebsd Freebsd 3.1 * * * Version Details Vulnerabilities
3 OS Freebsd Freebsd 3.3 * * * Version Details Vulnerabilities
4 OS Freebsd Freebsd 3.4 * * * Version Details Vulnerabilities
5 OS Freebsd Freebsd 3.5 * * * Version Details Vulnerabilities
6 OS Freebsd Freebsd 3.5.1 * * * Version Details Vulnerabilities
7 OS Freebsd Freebsd 4.0 * * * Version Details Vulnerabilities
8 OS Freebsd Freebsd 4.0 Alpha * * Version Details Vulnerabilities
9 OS Freebsd Freebsd 4.1 * * * Version Details Vulnerabilities
10 OS Freebsd Freebsd 4.1.1 * * * Version Details Vulnerabilities
11 OS Freebsd Freebsd 4.2 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Freebsd Freebsd 11

- References For CVE-2001-0183
OSVDB 1743
XF ipfw-bypass-firewall(5998)
CIAC L-029
BID 2293 FreeBSD ipfw Filtering Evasion Vulnerability Release Date:2001-01-23
BUGTRAQ 20010125 ecepass - proof of concept code for FreeBSD ipfw bypass

- Metasploit Modules Related To CVE-2001-0183

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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