Vulnerability Name:

CCN-977

Published:1997-04-01
Updated:1997-04-01
Summary:Nameservers that accept or return false Name Server (NS), Start of Authority (SOA), or Canonical Name (CNAME) records could allow an attacker to spoof DNS information. This allows an attacker to provide forged name services, circumvent name-based authentication (such as TCP wrappers), and redirect Web traffic.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
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): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: FTP directory /isc/bind/ at ftp.isc.org
BIND Source and Documentation

Source: CCN
Type: Microsoft Product Support Services Web site
Product Support Services

Source: CCN
Type: Fyodor's Exploit World
poison the DNS cache by returning a bogus IP as a CNAME for a real server

Source: XF
Type: UNKNOWN
dns-poison-ns(977)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:isc:bind:4.9.5:*:*:*:-:*:*:*

    • * Denotes that component is vulnerable
    BACK
    isc bind 4.9.5