Quantum Secular Labs / Blog / Advisories

CVE-2000-0081: Hotmail does not properly filter JavaScript code from a user's mailbox, which allows a remote attacker to…

CVE-2000-0081 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Microsoft Hotmail. 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

Hotmail does not properly filter JavaScript code from a user's mailbox, which allows a remote attacker to execute the code by using hexadecimal codes to specify the javascript: protocol, e.g. jAvascript.

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

  • Microsoft Hotmail: all versions listed by NVD

References