Vulnerability Name:

CVE-2001-0402 (CCN-6331)

Assigned:2001-04-06
Published:2001-04-06
Updated:2017-10-10
Summary:IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.
CVSS v3 Severity:7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-01:32
ipfilter

Source: CCN
Type: Caldera International, Inc. Security Advisory CSSA-2002-SCO.9
OpenServer: IPFilter may incorrectly pass packets

Source: CCN
Type: BugTraq Mailing List, Fri Apr 06 2001 - 13:39:11 CDT
URGENT: Serious bug in IPFilter (fwd)

Source: CCN
Type: BugTraq Mailing List, Sun Apr 08 2001 - 17:16:14 CDT
A fragmentation attack against IP Filter

Source: CCN
Type: NetBSD Security Advisory 2001-007
IP Filter may incorrectly pass packets

Source: FREEBSD
Type: Patch, Vendor Advisory
FreeBSD-SA-01:32

Source: CCN
Type: IPFilter Web site
Download

Source: MITRE
Type: CNA
CVE-2001-0402

Source: BUGTRAQ
Type: UNKNOWN
20010408 A fragmentation attack against IP Filter

Source: CCN
Type: Hewlett-Packard Company Security Bulletin HPSBUX0201-181
Sec. Vulnerability in IPFilter/9000

Source: CCN
Type: CIAC Information Bulletin L-075
FreeBSD IPFilter May Incorrectly Pass Packets

Source: CCN
Type: OSVDB ID: 4692
IPFilter Arbitrary UDP/TCP Port Access

Source: CCN
Type: BID-2545
IPFilter Fragment Rule Bypass Vulnerability

Source: XF
Type: UNKNOWN
ipfilter-access-ports(6331)

Source: XF
Type: UNKNOWN
ipfilter-access-ports(6331)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:darren_reed:ipfilter:*:*:*:*:*:*:*:* (Version <= 3.4.16)

    • Configuration 2:
  • cpe:/o:freebsd:freebsd:*:*:*:*:*:*:*:* (Version <= 4.1)
  • OR cpe:/o:openbsd:openbsd:2.8:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:darren_reed:ipfilter:3.4.16:*:*:*:*:*:*:*
  • AND
  • cpe:/o:hp:hp-ux:11.00:*:*:*:*:*:*:*
  • OR cpe:/o:hp:hp-ux:11.11:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:3.5.1:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:4.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    darren_reed ipfilter *
    freebsd freebsd *
    openbsd openbsd 2.8
    darren_reed ipfilter 3.4.16
    hp hp-ux 11.00
    hp hp-ux 11.11
    freebsd freebsd 3.5.1
    freebsd freebsd 4.2