A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability exists because the Cisco Discovery Protocol parser does not properly validate input for certain fields in a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. An successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
User Interaction None
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
User Interaction None
Access Vector Adjacent Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
AV:A/AC:L/Au:N/C:C/I:C/A:C
Vendors | Products |
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Cisco |
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Configuration 1 [-]
AND |
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Configuration 2 [-]
AND |
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Configuration 3 [-]
AND |
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Configuration 4 [-]
AND |
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References
Link | Resource |
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http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html | Third Party Advisory VDB Entry |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: cisco
Published: 2020-02-05T00:00:00
Updated: 2020-02-05T18:06:05
Reserved: 2019-12-12T00:00:00
Link: CVE-2020-3119
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-02-05T18:15:10.987
Modified: 2020-02-12T15:25:28.257
Link: CVE-2020-3119
JSON object: View
Redhat Information
No data.
CWE