Quantum Secular Labs / Blog / Advisories

CVE-2002-0613: Dnstools Software: Authentication bypass

CVE-2002-0613 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Dnstools Software. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

dnstools.php for DNSTools 2.0 beta 4 and earlier allows remote attackers to bypass authentication and gain privileges by setting the user_logged_in or user_dnstools_administrator parameters.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

• Access vector: Network. Exploitable remotely over the network.
• Access complexity: Low. No special conditions are required.
• Authentication: None. No authentication is needed.
• Confidentiality impact: Complete. Total information disclosure.
• Integrity impact: Complete. Total loss of integrity.
• Availability impact: Complete. Total shutdown of the component.

Affected products

• Dnstools Software: 2.0_beta3; 2.0_beta4

References

• http://archives.neohapsis.com/archives/bugtraq/2002-04/0390.html
• http://www.iss.net/security_center/static/8948.php
• http://www.securityfocus.com/bid/4617
• http://www.dnstools.com/dnstools_2.0.1.tar.gz