| Summary | 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. |
|---|---|
| Publication Date | Oct. 4, 2002, 1 p.m. |
| Registration Date | Jan. 29, 2021, 6:04 p.m. |
| Last Update | Feb. 9, 2024, 12:26 p.m. |
| CVSS2.0 : MEDIUM | |
| Score | 6.8 |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 中 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | はい |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:microsoft:windows_xp:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_2000:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_98:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_me:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_98se:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_nt:4.0:-:*:*:terminal_server:*:*:* | |||||
| cpe:2.3:o:microsoft:windows_nt:4.0:-:*:*:-:*:*:* | |||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:outlook_express:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | ||||