Vulnerability Monitor

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CVE-2015-0205

The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.

Published

2015-01-09T02:59:11.273

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

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

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-310
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl 1.0.0a Yes
Application openssl openssl 1.0.0b Yes
Application openssl openssl 1.0.0c Yes
Application openssl openssl 1.0.0d Yes
Application openssl openssl 1.0.0e Yes
Application openssl openssl 1.0.0f Yes
Application openssl openssl 1.0.0g Yes
Application openssl openssl 1.0.0h Yes
Application openssl openssl 1.0.0i Yes
Application openssl openssl 1.0.0j Yes
Application openssl openssl 1.0.0k Yes
Application openssl openssl 1.0.0l Yes
Application openssl openssl 1.0.0m Yes
Application openssl openssl 1.0.0n Yes
Application openssl openssl 1.0.0o Yes
Application openssl openssl 1.0.1a Yes
Application openssl openssl 1.0.1b Yes
Application openssl openssl 1.0.1c Yes
Application openssl openssl 1.0.1d Yes
Application openssl openssl 1.0.1e Yes
Application openssl openssl 1.0.1f Yes
Application openssl openssl 1.0.1g Yes
Application openssl openssl 1.0.1h Yes
Application openssl openssl 1.0.1i Yes
Application openssl openssl 1.0.1j Yes
References