CVE-2015-8960
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.
- Score
- CVSS 3.1 8.1 High
- Status
- Modified - secalert@redhat.com
- Published
- 2016-09-21
- Last modified
- 2024-08-06
- Weaknesses
- CWE-295
Affected products
- Transport Layer Security (Ietf)
- Clustered Data Ontap Antivirus Connector (Netapp)
- Data Ontap Edge (Netapp)
- Host Agent (Netapp)
- Oncommand Shift (Netapp)
- Plug-in For Symantec Netbackup (Netapp)
- Smi-s Provider (Netapp)
- Snap Creator Framework (Netapp)
- Snapdrive (Netapp)
- Snapmanager (Netapp)
- Snapprotect (Netapp)
- Solidfire & Hci Management Node (Netapp)
- System Setup (Netapp)
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
