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CVE-2018-0163 (GCVE-0-2018-0163)

Vulnerability from cvelistv5 – Published: 2018-03-28 22:00 – Updated: 2024-12-02 20:54
VLAI
Summary
A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass the authentication phase on an 802.1x multi-auth port. The vulnerability is due to a logic change error introduced into the code. An attacker could exploit this vulnerability by trying to access an 802.1x multi-auth port after a successful supplicant has authenticated. An exploit could allow the attacker to bypass the 802.1x access controls and obtain access to the network. Cisco Bug IDs: CSCvg69701.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-02 18:54 UTC
CWE
References
Impacted products
Vendor Product Version CPE status
n/a Cisco IOS Affected: Cisco IOS
Date Public
2018-03-28 00:00
Show details on NVD website

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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass the authentication phase on an 802.1x multi-auth port. The vulnerability is due to a logic change error introduced into the code. An attacker could exploit this vulnerability by trying to access an 802.1x multi-auth port after a successful supplicant has authenticated. An exploit could allow the attacker to bypass the 802.1x access controls and obtain access to the network. Cisco Bug IDs: CSCvg69701."
        },
        {
          "lang": "es",
          "value": "Una vulnerabilidad en e la caracter\u00edstica multiple-authentication (multi-auth) 802.1x de Cisco IOS Software podr\u00eda permitir que un atacante adyacente sin autenticar omita la fase de autenticaci\u00f3n en un puerto multi-auth 802.1x. Esta vulnerabilidad se debe a un error de cambio de l\u00f3gica introducido en el c\u00f3digo. Un atacante podr\u00eda explotar esta vulnerabilidad intentando acceder a un puerto multi-auth 802.1x despu\u00e9s de que un solicitante se haya autenticado con \u00e9xito. Un exploit podr\u00eda permitir que el atacante omita los controles de acceso 802.1x y obtenga acceso a la red. Cisco Bug IDs: CSCvg69701."
        }
      ],
      "id": "CVE-2018-0163",
      "lastModified": "2024-11-21T03:37:38.443",
      "metrics": {
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            "baseSeverity": "LOW",
            "cvssData": {
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              "accessVector": "ADJACENT_NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 3.3,
              "confidentialityImpact": "NONE",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:A/AC:L/Au:N/C:N/I:P/A:N",
              "version": "2.0"
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            "exploitabilityScore": 6.5,
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            "source": "nvd@nist.gov",
            "type": "Primary",
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              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.1"
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      "published": "2018-03-28T22:29:00.750",
      "references": [
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          "source": "ykramarz@cisco.com",
          "tags": [
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            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/103571"
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          "tags": [
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          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dot1x"
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          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dot1x"
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      ],
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
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              "value": "CWE-287"
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          ],
          "source": "ykramarz@cisco.com",
          "type": "Secondary"
        },
        {
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              "value": "CWE-287"
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}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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