CVE-2015-8960 (GCVE-0-2015-8960)
Vulnerability from cvelistv5
Published
2016-09-21 01:00
Modified
2024-08-06 08:36
Severity ?
CWE
  • n/a
Summary
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.
References
secalert@redhat.com http://twitter.com/matthew_d_green/statuses/630908726950674433 Press/Media Coverage, Technical Description, Third Party Advisory
secalert@redhat.com http://www.openwall.com/lists/oss-security/2016/09/20/4 Mailing List, Technical Description, Third Party Advisory
secalert@redhat.com http://www.securityfocus.com/bid/93071 Broken Link, Third Party Advisory, VDB Entry
secalert@redhat.com https://kcitls.org Exploit, Technical Description
secalert@redhat.com https://security.netapp.com/advisory/ntap-20180626-0002/ Third Party Advisory
secalert@redhat.com https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf Exploit, Mitigation, Technical Description
af854a3a-2127-422b-91ae-364da2661108 http://twitter.com/matthew_d_green/statuses/630908726950674433 Press/Media Coverage, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2016/09/20/4 Mailing List, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/93071 Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://kcitls.org Exploit, Technical Description
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20180626-0002/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf Exploit, Mitigation, Technical Description
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T08:36:30.681Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20160920 Re: Possible CVE for TLS protocol issue",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/09/20/4"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://twitter.com/matthew_d_green/statuses/630908726950674433"
          },
          {
            "name": "93071",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/93071"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180626-0002/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://kcitls.org"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-11-08T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-06-27T09:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[oss-security] 20160920 Re: Possible CVE for TLS protocol issue",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/09/20/4"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://twitter.com/matthew_d_green/statuses/630908726950674433"
        },
        {
          "name": "93071",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/93071"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180626-0002/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://kcitls.org"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2015-8960",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20160920 Re: Possible CVE for TLS protocol issue",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2016/09/20/4"
            },
            {
              "name": "http://twitter.com/matthew_d_green/statuses/630908726950674433",
              "refsource": "MISC",
              "url": "http://twitter.com/matthew_d_green/statuses/630908726950674433"
            },
            {
              "name": "93071",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/93071"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180626-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180626-0002/"
            },
            {
              "name": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf",
              "refsource": "MISC",
              "url": "https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf"
            },
            {
              "name": "https://kcitls.org",
              "refsource": "MISC",
              "url": "https://kcitls.org"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2015-8960",
    "datePublished": "2016-09-21T01:00:00",
    "dateReserved": "2016-09-20T00:00:00",
    "dateUpdated": "2024-08-06T08:36:30.681Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2015-8960\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2016-09-21T02:59:00.133\",\"lastModified\":\"2025-04-12T10:46:40.837\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"El protocolo TLS 1.2 y versiones anteriores soporta los valores rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh y ecdsa_fixed_ecdh para ClientCertificateType pero no documenta directamente la habilidad para computar el secreto maestro en determinadas situaciones con una clave de cliente secreta y una clave p\u00fablica de servidor pero no una clave secreta de servidor, lo que facilita a atacantes man-in-the-middle suplantar servidores TLS aprovechando el conocimiento de la clave secreta para un certificado cliente X.509 arbitrariamente instalado, tambi\u00e9n conocido como problema \\\"Key Compromise Impersonation (KCI)\\\".\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:P\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ietf:transport_layer_security:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.2\",\"matchCriteriaId\":\"B20CCEB2-5534-4263-ACEA-C0A928CB6414\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:a:apple:safari:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AFDA34B4-65B4-41A5-AC22-667C8D8FF4B7\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:a:google:chrome:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"39B565E1-C2F1-44FC-A517-E3130332B17C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:a:microsoft:internet_explorer:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C37BA825-679F-4257-9F2B-CE2318B75396\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:a:mozilla:firefox:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"97D4FFCF-5309-43B6-9FD5-680C6D535A7F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:a:opera:opera_browser:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4545786D-3129-4D92-B218-F4A92428ED48\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"62347994-1353-497C-9C4A-D5D8D95F67E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0C4B1E5-75BF-43AE-BBAC-0DD4124C71ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:host_agent:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"546855F3-654C-48F0-B3A0-FF1ABBF04007\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:oncommand_shift:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3BD81527-A341-42C3-9AB9-880D3DB04B08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:plug-in_for_symantec_netbackup:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFE0A9D2-9A49-4BF6-BC6F-8249162D8334\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4BB0FDCF-3750-44C6-AC5C-0CC2AAD14093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9F4754FB-E3EB-454A-AB1A-AE3835C5350C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:unix:*:*\",\"matchCriteriaId\":\"61D7EF01-F618-497F-9375-8003CEA3D380\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:windows:*:*\",\"matchCriteriaId\":\"BEDE62C6-D571-4AF8-B85E-CBBCE4AF98B5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:oracle:*:*\",\"matchCriteriaId\":\"26A2B713-7D6D-420A-93A4-E0D983C983DF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:sap:*:*\",\"matchCriteriaId\":\"64DE38C8-94F1-4860-B045-F33928F676A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F74F467A-0C81-40D9-BA06-40FB8EF02C04\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:solidfire_\\\\\u0026_hci_management_node:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D6D700C5-F67F-4FFB-BE69-D524592A3D2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:system_setup:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"459CF8B6-B815-42EA-A286-6E737529D9AC\"}]}]}],\"references\":[{\"url\":\"http://twitter.com/matthew_d_green/statuses/630908726950674433\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Press/Media Coverage\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2016/09/20/4\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/93071\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://kcitls.org\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\",\"Technical Description\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180626-0002/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\",\"Mitigation\",\"Technical Description\"]},{\"url\":\"http://twitter.com/matthew_d_green/statuses/630908726950674433\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Press/Media Coverage\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2016/09/20/4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/93071\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://kcitls.org\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Technical Description\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20180626-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.usenix.org/system/files/conference/woot15/woot15-paper-hlauschek.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mitigation\",\"Technical Description\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.