CVE-2021-4242 (GCVE-0-2021-4242)
Vulnerability from cvelistv5
Published
2022-11-30 00:00
Modified
2025-04-15 13:11
Severity ?
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-707 - Improper Neutralization -> CWE-74 Injection -> CWE-78 OS Command Injection
Summary
A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.
References
Impacted products
Vendor Product Version
Sapido BR270n Version: n/a
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:23:09.881Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://blog.csdn.net/qq_44159028/article/details/114590267"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://vuldb.com/?id.214592"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-4242",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-14T16:56:44.647966Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-15T13:11:26.215Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BR270n",
          "vendor": "Sapido",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        },
        {
          "product": "BRC76n",
          "vendor": "Sapido",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        },
        {
          "product": "GR297",
          "vendor": "Sapido",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        },
        {
          "product": "RB1732",
          "vendor": "Sapido",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-707",
              "description": "CWE-707 Improper Neutralization -\u003e CWE-74 Injection -\u003e CWE-78 OS Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-30T00:00:00.000Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "url": "https://blog.csdn.net/qq_44159028/article/details/114590267"
        },
        {
          "url": "https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py"
        },
        {
          "url": "https://vuldb.com/?id.214592"
        }
      ],
      "title": "Sapido BR270n/BRC76n/GR297/RB1732 syscmd.htm os command injection",
      "x_generator": "vuldb.com"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2021-4242",
    "datePublished": "2022-11-30T00:00:00.000Z",
    "dateReserved": "2022-11-30T00:00:00.000Z",
    "dateUpdated": "2025-04-15T13:11:26.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-4242\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2022-11-30T14:15:10.670\",\"lastModified\":\"2024-11-21T06:37:13.137\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad fue encontrada en Sapido BR270n, BRC76n, GR297 y RB1732 y clasificada como cr\u00edtica. Una funci\u00f3n desconocida del archivo ip/syscmd.htm es afectada por este problema. La manipulaci\u00f3n conduce a la inyecci\u00f3n de comandos del sistema operativo. El ataque puede lanzarse de forma remota. El exploit ha sido divulgado al p\u00fablico y puede utilizarse. El identificador de esta vulnerabilidad es VDB-214592.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":3.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-707\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sapido:br270n_firmware:2.1.03:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB7ED0E2-05DF-4179-949A-034D2AD405C6\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sapido:br270n:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2D099517-CB63-4BDB-8DD6-53D154768DAD\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sapido:brc76n_firmware:2.1.03:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9120396E-B3D3-4EA9-9A98-40EF7B8E6DE3\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sapido:brc76n:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"03A48719-9186-49F2-91BC-CF93C8822A13\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sapido:gr297n_firmware:2.1.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8607F07-EA08-44C7-A786-3094623F6B57\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sapido:gr297n:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6841D138-6697-45AF-B2B3-B948E9D1C1BE\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sapido:rb-1732_firmware:2.0.43:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C0B14C13-1E25-4206-9B2F-E474868E5B44\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sapido:rb-1732:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9A618943-41CC-4E01-A207-8E83C039A2EE\"}]}]}],\"references\":[{\"url\":\"https://blog.csdn.net/qq_44159028/article/details/114590267\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.214592\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://blog.csdn.net/qq_44159028/article/details/114590267\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.214592\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Sapido BR270n/BRC76n/GR297/RB1732 syscmd.htm os command injection\", \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2022-11-30T00:00:00.000Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was found in Sapido BR270n, BRC76n, GR297 and RB1732 and classified as critical. Affected by this issue is some unknown functionality of the file ip/syscmd.htm. The manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-214592.\"}], \"affected\": [{\"vendor\": \"Sapido\", \"product\": \"BR270n\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}, {\"vendor\": \"Sapido\", \"product\": \"BRC76n\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}, {\"vendor\": \"Sapido\", \"product\": \"GR297\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}, {\"vendor\": \"Sapido\", \"product\": \"RB1732\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}], \"references\": [{\"url\": \"https://blog.csdn.net/qq_44159028/article/details/114590267\"}, {\"url\": \"https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py\"}, {\"url\": \"https://vuldb.com/?id.214592\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"LOW\", \"baseScore\": 6.3, \"baseSeverity\": \"MEDIUM\"}}], \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"lang\": \"en\", \"description\": \"CWE-707 Improper Neutralization -\u003e CWE-74 Injection -\u003e CWE-78 OS Command Injection\", \"cweId\": \"CWE-707\"}]}], \"x_generator\": \"vuldb.com\"}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T17:23:09.881Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://blog.csdn.net/qq_44159028/article/details/114590267\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/smallpiggy/Sapido--rce/blob/main/Sapido%E8%B7%AF%E7%94%B1%E5%99%A8-rce.py\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://vuldb.com/?id.214592\", \"tags\": [\"x_transferred\"]}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-4242\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-14T16:56:44.647966Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-14T16:56:46.315Z\"}}]}",
      "cveMetadata": "{\"state\": \"PUBLISHED\", \"cveId\": \"CVE-2021-4242\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"assignerShortName\": \"VulDB\", \"dateUpdated\": \"2025-04-15T13:11:26.215Z\", \"dateReserved\": \"2022-11-30T00:00:00.000Z\", \"datePublished\": \"2022-11-30T00:00:00.000Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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.
  • 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.