Quantum Secular Labs / Blog / Advisories
CVE-2002-0423: Efingerd: Buffer overflow
CVE-2002-0423 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Efingerd. 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
Buffer overflow in efingerd 1.5 and earlier, and possibly up to 1.61, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a finger request from an IP address with a long hostname that is obtained via a reverse DNS lookup.
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
- Efingerd: 1.3; 1.6.1