What’s Vulnerable › Vulnerabilities

CVE-2015-8960

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-09-21 · updated 2026-06-17
• Weakness: CWE-295

Description

The TLS protocol 1.2 and earlier supports the rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh, and ecdsa_fixed_ecdh values for ClientCertificateType but does not directly document the ability to compute the master secret in certain situations with a client secret key and server public key but not a server secret key, which makes it easier for man-in-the-middle attackers to spoof TLS servers by leveraging knowledge of the secret key for an arbitrary installed client X.509 certificate, aka the "Key Compromise Impersonation (KCI)" issue.

Affected products

• IETF Transport Layer Security: through 1.2
• NetApp Clustered Data Ontap Antivirus Connector: all versions
• NetApp Data Ontap Edge: all versions
• NetApp Host Agent: all versions
• NetApp Oncommand Shift: all versions
• NetApp Plug-In For Symantec Netbackup: all versions
• NetApp Smi-S Provider: all versions
• NetApp Snap Creator Framework: all versions
• NetApp Snapdrive: all versions
• SnapManager for Oracle: all versions
• NetApp Snapprotect: all versions
• NetApp Solidfire & Hci Management Node: all versions
• NetApp System Setup: all versions

References

• http://twitter.com/matthew_d_green/statuses/630908726950674433
• http://www.openwall.com/lists/oss-security/2016/09/20/4
• http://www.securityfocus.com/bid/93071
• https://kcitls.org
• https://security.netapp.com/advisory/ntap-20180626-0002/
• https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf
• http://twitter.com/matthew_d_green/statuses/630908726950674433
• http://www.openwall.com/lists/oss-security/2016/09/20/4
• http://www.securityfocus.com/bid/93071
• https://kcitls.org
• https://security.netapp.com/advisory/ntap-20180626-0002/
• https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf

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