GSD-2021-33478

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.
Aliases
Aliases
CVE-2021-33478
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-33478",
    "description": "The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.",
    "id": "GSD-2021-33478"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-33478"
      ],
      "details": "The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.",
      "id": "GSD-2021-33478",
      "modified": "2023-12-13T01:23:19.144771Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-33478",
        "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 TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh",
            "refsource": "MISC",
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8800_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8800_series_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "14.0\\(1\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.3\\(4\\)",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:cisco:wireless_ip_phone_8821_firmware:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "11.0\\(6\\)sr1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-33478"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-119"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-08-02T15:38Z",
      "publishedDate": "2021-07-22T17:15Z"
    }
  }
}


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 observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.