Vulnerability-Lookup

GHSA-J6HR-VMM6-M6C2

Vulnerability from github – Published: 2022-01-20 00:00 – Updated: 2022-01-29 00:01

Details

Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\'s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-23842"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-19T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\\\u0027s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet.",
  "id": "GHSA-j6hr-vmm6-m6c2",
  "modified": "2022-01-29T00:01:16Z",
  "published": "2022-01-20T00:00:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23842"
    },
    {
      "type": "WEB",
      "url": "https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-23842 (GCVE-0-2021-23842)

Vulnerability from cvelistv5 – Published: 2022-01-19 20:38 – Updated: 2024-09-16 21:56

Title

Use of Hard-coded Cryptographic Key

Summary

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CWE

CWE-321 - Use of Hard-coded Cryptographic Key

Assigner

bosch icscert root

References

1 reference

URL	Tags
https://psirt.bosch.com/security-advisories/BOSCH…	x_refsource_CONFIRM

Impacted products

4 products

Vendor	Product	Version
Bosch	AMS	Affected: unspecified , < 4.0 (custom)
Bosch	APE	Affected: unspecified , ≤ 3.8.x (custom)
Bosch	BIS	Affected: unspecified , < 4.9.1 (custom)
Bosch	AMC2	Affected: all

Date Public

2022-01-19 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:14:09.336Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "AMS",
          "vendor": "Bosch",
          "versions": [
            {
              "lessThan": "4.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "APE",
          "vendor": "Bosch",
          "versions": [
            {
              "lessThanOrEqual": "3.8.x",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "BIS",
          "vendor": "Bosch",
          "versions": [
            {
              "lessThan": "4.9.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "AMC2",
          "vendor": "Bosch",
          "versions": [
            {
              "status": "affected",
              "version": "all"
            }
          ]
        }
      ],
      "datePublic": "2022-01-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\\\u0027s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-321",
              "description": "CWE-321 Use of Hard-coded Cryptographic Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-19T20:38:54.000Z",
        "orgId": "c95f66b2-7e7c-41c5-8f09-6f86ec68659c",
        "shortName": "bosch"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html"
        }
      ],
      "source": {
        "advisory": "BOSCH-SA-940448-BT",
        "discovery": "EXTERNAL"
      },
      "title": "Use of Hard-coded Cryptographic Key",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@bosch.com",
          "DATE_PUBLIC": "2022-01-19",
          "ID": "CVE-2021-23842",
          "STATE": "PUBLIC",
          "TITLE": "Use of Hard-coded Cryptographic Key"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "AMS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "4.0"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "APE",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "3.8.x"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "BIS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "4.9.1"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "AMC2",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_value": "all"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Bosch"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\\\u0027s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-321 Use of Hard-coded Cryptographic Key"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html",
              "refsource": "CONFIRM",
              "url": "https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html"
            }
          ]
        },
        "source": {
          "advisory": "BOSCH-SA-940448-BT",
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c95f66b2-7e7c-41c5-8f09-6f86ec68659c",
    "assignerShortName": "bosch",
    "cveId": "CVE-2021-23842",
    "datePublished": "2022-01-19T20:38:54.368Z",
    "dateReserved": "2021-01-12T00:00:00.000Z",
    "dateUpdated": "2024-09-16T21:56:51.896Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.