Vulnerability Monitor

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CVE-2002-0862

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.

Published

2002-10-04T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-295
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_2000 - Yes
Operating System microsoft windows_98 - Yes
Operating System microsoft windows_98se - Yes
Operating System microsoft windows_me - Yes
Operating System microsoft windows_nt 4.0 Yes
Operating System microsoft windows_nt 4.0 Yes
Operating System microsoft windows_xp - Yes
Application microsoft internet_explorer - Yes
Application microsoft office - Yes
Application microsoft outlook_express - Yes
Operating System apple macos - No
References