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CVE-2000-1071: Netscape Iplanet Ical: Privilege escalation

CVE-2000-1071 has a CVSS v2 base score of 10.0 (the maximum on that scale) and NVD lists Netscape Iplanet Ical as the affected product. 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

The GUI installation for iCal 2.1 Patch 2 disables access control for the X server using an "xhost +" command, which allows remote attackers to monitor X Windows events and gain privileges.

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

• Netscape Iplanet Ical: 2.1 patch2

References

• http://www.atstake.com/research/advisories/2000/a100900-1.txt
• http://www.osvdb.org/7213
• http://www.securityfocus.com/bid/1767
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5752