CVE-2001-0183

FreeBSD 3.x/4.x - 'ipfw' Filtering Evasion

Severity Score

7.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

NISTv2 7.5

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2001-01-23 First Exploit
2001-03-08 CVE Reserved
2001-03-26 CVE Published
2023-03-07 EPSS Updated
2024-08-08 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (7)

URL	Tag	Source
http://www.ciac.org/ciac/bulletins/l-029.shtml	Government Resource
http://www.osvdb.org/1743	Vdb Entry
http://www.security-express.com/archives/bugtraq/2001-01/0424.html	Mailing List
https://exchange.xforce.ibmcloud.com/vulnerabilities/5998	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/20593	2001-01-23
http://www.securityfocus.com/bid/2293	2024-08-08

URL	Date	SRC
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc	2017-10-10

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.0 Search vendor "Freebsd" for product "Freebsd" and version "3.0"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.1 Search vendor "Freebsd" for product "Freebsd" and version "3.1"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.3 Search vendor "Freebsd" for product "Freebsd" and version "3.3"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.4 Search vendor "Freebsd" for product "Freebsd" and version "3.4"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.5 Search vendor "Freebsd" for product "Freebsd" and version "3.5"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				3.5.1 Search vendor "Freebsd" for product "Freebsd" and version "3.5.1"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				4.0 Search vendor "Freebsd" for product "Freebsd" and version "4.0"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				4.0 Search vendor "Freebsd" for product "Freebsd" and version "4.0"		alpha		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				4.1 Search vendor "Freebsd" for product "Freebsd" and version "4.1"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				4.1.1 Search vendor "Freebsd" for product "Freebsd" and version "4.1.1"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				4.2 Search vendor "Freebsd" for product "Freebsd" and version "4.2"		-		Affected