A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker to execute persistent code at boot time and break the chain of trust. This vulnerability is due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit this vulnerability by installing code to a specific directory in the underlying operating system (OS) and setting a specific ROMMON variable. A successful exploit could allow the attacker to execute persistent code on the underlying OS. To exploit this vulnerability, the attacker would need access to the root shell on the device or have physical access to the device.
Attack Vector Local
Attack Complexity Low
Privileges Required High
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
AV:L/AC:L/Au:N/C:C/I:C/A:C
Vendors | Products |
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Cisco |
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Configuration 1 [-]
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References
Link | Resource |
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xbace-OnCEbyS | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: cisco
Published: 2020-09-24T00:00:00
Updated: 2020-09-24T18:01:41
Reserved: 2019-12-12T00:00:00
Link: CVE-2020-3417
JSON object: View
NVD Information
Status : Modified
Published: 2020-09-24T18:15:18.730
Modified: 2023-11-07T03:22:41.223
Link: CVE-2020-3417
JSON object: View
Redhat Information
No data.
CWE