Vulnerability Name:

CVE-2001-1155 (CCN-7040)

Assigned:2001-08-23
Published:2001-08-23
Updated:2008-09-05
Summary:TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spoofing.
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:Bypass Security
References:Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-01:56
tcp_wrappers PARANOID hostname checking does not work

Source: FREEBSD
Type: Patch, Vendor Advisory
FreeBSD-SA-01:56

Source: MITRE
Type: CNA
CVE-2001-1155

Source: OSVDB
Type: UNKNOWN
5454

Source: CCN
Type: OSVDB ID: 5454
TCP Wrappers PARANOID Reverse DNS ACL Bypass

Source: CCN
Type: BID-3229
FreeBSD tcp_wrappers PARANOID Checking Bypass Vulnerability

Source: XF
Type: UNKNOWN
tcp-wrappers-paranoid-bypass(7040)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:4.3:-:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:4.3:-:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    freebsd freebsd 4.1.1
    freebsd freebsd 4.2
    freebsd freebsd 4.3
    freebsd freebsd 4.1.1
    freebsd freebsd 4.2
    freebsd freebsd 4.3 -