FKIE_CVE-2020-27541

Vulnerability from fkie_nvd - Published: 2021-01-26 18:15 - Updated: 2026-06-17 03:09
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service has a bug in parsing broadcast discovery UDP packet. Sending a packet of too small size will lead to an attempt of allocating buffer of negative size. As the result service AgentGreen will be terminated and started again later.
References
cve@mitre.orghttps://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707Exploit, Third Party Advisory
Impacted products
Vendor Product Version
company cs-c2shw_firmware 5.0.082.1
company cs-c2shw -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:company:cs-c2shw_firmware:5.0.082.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "DA2108A4-A3BF-4ECE-99E7-9EE9233063EB",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:company:cs-c2shw:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1CC4768-6258-44B3-9290-AF21DDB6E728",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service has a bug in parsing broadcast discovery UDP packet. Sending a packet of too small size will lead to an attempt of allocating buffer of negative size. As the result service AgentGreen will be terminated and started again later."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Denegaci\u00f3n de Servicio en Rostelecom CS-C2SHW versi\u00f3n 5.0.082.1.\u0026#xa0;El servicio AgentGreen presenta un error al analizar el paquete UDP de detecci\u00f3n de difusi\u00f3n.\u0026#xa0;El env\u00edo de un paquete de tama\u00f1o demasiado peque\u00f1o conllevar\u00e1 a un intento de asignar un b\u00fafer de tama\u00f1o negativo.\u0026#xa0;Como resultado, el servicio AgentGreen se terminar\u00e1 y se reiniciar\u00e1 m\u00e1s tarde"
    }
  ],
  "id": "CVE-2020-27541",
  "lastModified": "2026-06-17T03:09:17.313",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-01-26T18:15:46.177",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.