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CVE-2001-1078: Extremail: Privilege escalation

CVE-2001-1078 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Extremail. 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

Format string vulnerability in flog function of eXtremail 1.1.9 and earlier allows remote attackers to gain root privileges via format specifiers in the SMTP commands (1) HELO, (2) EHLO, (3) MAIL FROM, or (4) RCPT TO, and the POP3 commands (5) USER and (6) other commands that can be executed after POP3 authentication.

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

• Extremail: 1.0; 1.0.1; 1.0.2; 1.0.3; 1.1; 1.1.1; 1.1.2; 1.1.3; 1.1.4; 1.1.5; 1.1.6; 1.1.7

References

• http://www.securityfocus.com/bid/2908
• http://archives.neohapsis.com/archives/bugtraq/2001-06/0291.html
• http://www.extremail.com/history.htm
• http://www.extremail.com/news.htm
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6733