Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2002-0862

Severity CVSS v4.0:
Pending analysis
Type:
CWE-295 Improper Certificate Validation
Publication date:
04/10/2002
Last modified:
03/04/2025

Description

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:microsoft:windows_2000:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_98:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_98se:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_me:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:-:*:*:-:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:-:*:*:terminal_server:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook_express:-:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools