FKIE_CVE-2018-15395

Vulnerability from fkie_nvd - Published: 2018-10-17 20:29 - Updated: 2024-11-21 03:50
Severity ?
5.4 (Medium) - CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Summary
A vulnerability in the authentication and authorization checking mechanisms of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, adjacent attacker to gain network access to a Cisco TrustSec domain. Under normal circumstances, this access should be prohibited. The vulnerability is due to the dynamic assignment of Security Group Tags (SGTs) during a wireless roam from one Service Set Identifier (SSID) to another within the Cisco TrustSec domain. An attacker could exploit this vulnerability by attempting to acquire an SGT from other SSIDs within the domain. Successful exploitation could allow the attacker to gain privileged network access that should be prohibited under normal circumstances.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/105676Third Party Advisory, VDB Entry
psirt@cisco.comhttp://www.securitytracker.com/id/1041925Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlan-escalationVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105676Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1041925Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlan-escalationVendor Advisory
Impacted products
Vendor Product Version
cisco wireless_lan_controller_software 8.5\(120.0\)
To clipboard 

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      "nodes": [
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          "cpeMatch": [
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              "matchCriteriaId": "1E130BF6-1D3B-46AC-B5DA-3E2807917944",
              "vulnerable": true
            }
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          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the authentication and authorization checking mechanisms of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, adjacent attacker to gain network access to a Cisco TrustSec domain. Under normal circumstances, this access should be prohibited. The vulnerability is due to the dynamic assignment of Security Group Tags (SGTs) during a wireless roam from one Service Set Identifier (SSID) to another within the Cisco TrustSec domain. An attacker could exploit this vulnerability by attempting to acquire an SGT from other SSIDs within the domain. Successful exploitation could allow the attacker to gain privileged network access that should be prohibited under normal circumstances."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en los mecanismos de comprobaci\u00f3n de autenticaci\u00f3n y autorizaci\u00f3n de Cisco Wireless LAN Controller (WLC) Software podr\u00eda permitir que un atacante autenticado adyacente obtenga acceso de red a un dominio Cisco TrustSec. En circunstancias normales, el acceso deber\u00eda estar prohibido. La vulnerabilidad se debe a la asignaci\u00f3n din\u00e1mica de STG (Security Group Tags) durante un roam inal\u00e1mbrico de un SSID (Service Set Identifier) a otro en el dominio Cisco TrustSec. Un atacante podr\u00eda explotar esta vulnerabilidad intentando adquirir un SGT de otros SSID en el dominio. Su explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante obtenga privilegios de red que deber\u00edan estar prohibidos en otras circunstancias."
    }
  ],
  "id": "CVE-2018-15395",
  "lastModified": "2024-11-21T03:50:41.773",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
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          "accessVector": "ADJACENT_NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 2.7,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
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        "exploitabilityScore": 5.1,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
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          "privilegesRequired": "LOW",
          "scope": "CHANGED",
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          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
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        "type": "Secondary"
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        "source": "nvd@nist.gov",
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  "published": "2018-10-17T20:29:00.363",
  "references": [
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      "tags": [
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      "url": "http://www.securityfocus.com/bid/105676"
    },
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      "url": "http://www.securitytracker.com/id/1041925"
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    {
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      "tags": [
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  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-284"
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      "source": "psirt@cisco.com",
      "type": "Secondary"
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        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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