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    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.

    Published:Sep 21, 2016
    Last Modified:Apr 12, 2025
    EPS:Sep 21, 2016
    EPSS Score:0.00364
    CVSS Score:8.1

    Affected Products

    Vendor
    Apple
    Product
    Safari
    Vendor
    Google
    Product
    Chrome
    Vendor
    Ietf
    Product
    Transport Layer Security
    Vendor
    Microsoft
    Product
    Internet Explorer
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Netapp
    Product
    Clustered Data Ontap Antivirus Connector
    Vendor
    Netapp
    Product
    Data Ontap Edge
    Vendor
    Netapp
    Product
    Host Agent
    Vendor
    Netapp
    Product
    Oncommand Shift
    Vendor
    Netapp
    Product
    Plug-in For Symantec Netbackup
    Vendor
    Netapp
    Product
    Smi-s Provider
    Vendor
    Netapp
    Product
    Snap Creator Framework
    Vendor
    Netapp
    Product
    Snapdrive
    Vendor
    Netapp
    Product
    Snapmanager
    Vendor
    Netapp
    Product
    Snapprotect
    Vendor
    Netapp
    Product
    Solidfire \& Hci Management Node
    Vendor
    Netapp
    Product
    System Setup
    Vendor
    Opera
    Product
    Opera Browser

    Exploits

    https://kcitls.orghttps://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdfhttps://kcitls.orghttps://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High