CVE-2015-8960
Severity CVSS v4.0:
Pending analysis
Type:
CWE-295
Improper Certificate Validation
Publication date:
21/09/2016
Last modified:
12/04/2025
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.
Impact
Base Score 3.x
8.10
Severity 3.x
HIGH
Base Score 2.0
6.80
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:ietf:transport_layer_security:*:*:*:*:*:*:*:* | 1.2 (including) | |
cpe:2.3:a:apple:safari:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:google:chrome:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:mozilla:firefox:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:opera:opera_browser:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:host_agent:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:oncommand_shift:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:plug-in_for_symantec_netbackup:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:* | ||
cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:unix:*:* | ||
cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:windows:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- 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