FKIE_CVE-2017-6672

Vulnerability from fkie_nvd - Published: 2017-07-25 19:29 - Updated: 2025-04-20 01:37
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/99921Third Party Advisory, VDB Entry
psirt@cisco.comhttp://www.securitytracker.com/id/1038962Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99921Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038962Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1Vendor Advisory
Impacted products
Vendor Product Version
cisco asr_5000_series_software 19.3.5
cisco asr_5000_series_software 19.3.11
cisco asr_5000_series_software 19.3.12
cisco asr_5000_series_software 19.6.0
cisco asr_5000_series_software 19.6.3
cisco asr_5000_series_software 19.6.6
cisco asr_5000_series_software 20.1.v5
cisco asr_5000_series_software 20.2.4
cisco asr_5000_series_software 20.2.12
cisco asr_5000_series_software 20.3.0
cisco asr_5000_series_software 20.3.1
cisco asr_5000_series_software 21.0.v1.66638
cisco asr_5000_series_software 21.0.v2
cisco asr_5000_series_software 21.1.0
cisco asr_5000_series_software 21.1.2
cisco asr_5000_series_software 21.1.m0.65710
cisco asr_5000_series_software 21.1.m0.65921
cisco asr_5000_series_software 21.1.m0.65931
cisco asr_5000_series_software 21.1.m0.65986
cisco asr_5000_series_software 21.1.v0
cisco asr_5000_series_software 21.2.a0.65914
cisco asr_5000_series_software 21.2.a0.65995
cisco asr_5000_series_software 21.3.0
To clipboard 

{
  "configurations": [
    {
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en ciertos mecanismos de filtrado de listas de control de acceso (ACL) para ASR 5000 Series Aggregation Services Routers hasta la versi\u00f3n 21.x de Cisco, podr\u00eda permitir a un atacante remoto no autenticado omitir las reglas ACL que se han configurado para un dispositivo afectado. M\u00e1s informaci\u00f3n: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870."
    }
  ],
  "id": "CVE-2017-6672",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-07-25T19:29:00.207",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/99921"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id/1038962"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securityfocus.com/bid/99921"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "VDB Entry"
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

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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.
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  • 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.