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CVE-2003-0819: Microsoft Proxy Server: Buffer overflow

CVE-2003-0819 has a CVSS v2 base score of 10.0 (the maximum on that scale) and NVD lists Microsoft Proxy Server 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

Buffer overflow in the H.323 filter of Microsoft Internet Security and Acceleration Server 2000 allows remote attackers to execute arbitrary code in the Microsoft Firewall Service via certain H.323 traffic, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.

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.

Underlying weakness

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected products

• Microsoft Proxy Server: 2.0; 2.0 sp1

References

• http://www.cert.org/advisories/CA-2004-01.html
• http://www.kb.cert.org/vuls/id/749342
• http://www.securityfocus.com/bid/9408
• http://secunia.com/advisories/10611
• http://www.securityfocus.com/bid/9406
• http://www.securitytracker.com/id?1008698
• http://www.uniras.gov.uk/vuls/2004/006489/h323.htm
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-001
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A478