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wolfSSL CyaSSL におけるサーバになりすまされる脆弱性
Title wolfSSL CyaSSL におけるサーバになりすまされる脆弱性
Summary

wolfSSL は、未知の critical の拡張領域を持つ X.509 証明書を適切に検証しないため、サーバになりすまされる脆弱性が存在します。

Possible impacts 中間者攻撃 (man-in-the-middle attack) により、巧妙に細工された X.509 証明書を介して、サーバになりすまされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date April 9, 2014, midnight
Registration Date April 25, 2014, 12:19 p.m.
Last Update April 25, 2014, 12:19 p.m.
CVSS2.0 : 警告
Score 5.8
Vector AV:N/AC:M/Au:N/C:P/I:P/A:N
Affected System
yaSSL
CyaSSL 2.9.4 未満
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
0 [2014年04月25日]
  掲載		 Feb. 17, 2018, 10:37 a.m.
NVD Vulnerability Information
CVE-2014-2900
Summary

wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.

Publication Date April 22, 2014, 11:23 p.m.
Registration Date Jan. 26, 2021, 3:09 p.m.
Last Update Nov. 21, 2024, 11:07 a.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:yassl:cyassl:*:*:*:*:*:*:*:* 2.9.0
cpe:2.3:a:yassl:cyassl:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.9.9:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.4.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.6.5:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.6.3:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:yassl:cyassl:2.5.0:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List