CVE-2016-6422

Cisco IOS 12.2(33)SXJ9 on Supervisor Engine 32 and 720 modules for 6500 and 7600 devices mishandles certain operators, flags, and keywords in TCAM share ACLs, which allows remote attackers to bypass intended access restrictions by sending packets that should have been recognized by a filter, aka Bug ID CSCuy64806.

CVSS v3 7.5 HIGH
CVSS v2.0 4.3 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-catalyst	Mitigation Vendor Advisory
http://www.securityfocus.com/bid/93404
http://www.securitytracker.com/id/1036954

Configurations

Configuration 1 (hide)

cpe:2.3:o:cisco:ios:12.2\(33\)sxj9:*:*:*:*:*:*:*

History

No history.

Information

Published : 2016-10-06 10:59

Updated : 2024-02-28 15:21

NVD link : CVE-2016-6422

Mitre link : CVE-2016-6422

CVE.ORG link : CVE-2016-6422

JSON object : View

Products Affected

cisco

ios

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2016-6422", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2016-10-06T10:59:09.243", "references": [{"url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-catalyst", "tags": ["Mitigation", "Vendor Advisory"], "source": "ykramarz@cisco.com"}, {"url": "http://www.securityfocus.com/bid/93404", "source": "ykramarz@cisco.com"}, {"url": "http://www.securitytracker.com/id/1036954", "source": "ykramarz@cisco.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "Cisco IOS 12.2(33)SXJ9 on Supervisor Engine 32 and 720 modules for 6500 and 7600 devices mishandles certain operators, flags, and keywords in TCAM share ACLs, which allows remote attackers to bypass intended access restrictions by sending packets that should have been recognized by a filter, aka Bug ID CSCuy64806."}, {"lang": "es", "value": "Cisco IOS 12.2(33)SXJ9 en los m\u00f3dulos Supervisor Engine 32 y 720 para dispositivos 6500 y 7600 no maneja adecuadamente ciertos operadores, indicadores y palabras clave en ACLs compartida con TCAM, lo que permite a atacantes remotos eludir las restricciones destinadas al acceso por el env\u00edo de paquetes que deber\u00edan haber sido reconocidos por un filtro, vulnerabilidad tambi\u00e9n conocida como Bug ID CSCuy64806."}], "lastModified": "2017-07-30T01:29:12.943", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios:12.2\\(33\\)sxj9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DFB5FB44-0CD9-40E1-80EC-C8CFBA023FD6"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}