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CVE-2008-4690: Lynx: Command injection

CVE-2008-4690 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Lynx. 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

lynx 2.8.6dev.15 and earlier, when advanced mode is enabled and lynx is configured as a URL handler, allows remote attackers to execute arbitrary commands via a crafted lynxcgi: URL, a related issue to CVE-2005-2929. NOTE: this might only be a vulnerability in limited deployments that have defined a lynxcgi: handler.

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

  • Lynx: up to and including 2.8.6; 2.8.1 dev.1; 2.8.1 dev.10; 2.8.1 dev.11; 2.8.1 dev.12; 2.8.1 dev.13; 2.8.1 dev.14; 2.8.1 dev.15; 2.8.1 dev.16; 2.8.1 dev.17; 2.8.1 dev.18; 2.8.1 dev.19

References