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CVE-2002-0419: Information leaks in IIS 4 through 5.1 allow remote attackers to obtain potentially sensitive information o...

Information leaks in IIS 4 through 5.1 allow remote attackers to obtain potentially sensitive information or more easily conduct brute force attacks via responses from the server in which (2) in certain configurations, the server IP address is provided as the realm for Basic authentication, which could reveal real IP addresses that were obscured by NAT, or (3) when NTLM authentication is used, the NetBIOS name of the server and its Windows NT domain are revealed in response to an Authorization request. NOTE: this entry originally contained a vector (1) in which the server reveals whether it supports Basic or NTLM authentication through 401 Access Denied error messages. CVE has REJECTED this vector; it is not a vulnerability because the information is already available through legitimate use, since authentication cannot proceed without specifying a scheme that is supported by both the client and the server.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

Older IIS 4 through 5.1 servers can leak internal addressing and Windows identity details during authentication. This does not indicate remote code execution, but it can expose information useful for targeting, network mapping, or password attacks. Exposure is most likely on legacy IIS 4 through 5.1 deployments using Basic or NTLM authentication, especially where servers are internet-facing or placed behind NAT intended to hide real internal addresses. Treat this as a legacy exposure and reconnaissance risk. Prioritize remediation when the server is internet-facing, protects sensitive workflows, or reveals internal naming that could aid attackers. Mitigation focus: Inventory any IIS 4 through 5.1 systems and authentication settings.; Review vendor guidance for historical fixes or supported migration paths.; Disable unnecessary Basic or NTLM authentication where business requirements allow..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Affected products

Products and packages named in the record

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Weakness

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