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MEDIUM · 6.7

CVE-2020-3513

Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (...

Vulnerability Description

Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (RSP3) installed could allow an authenticated, local attacker with high privileges to execute persistent code at bootup and break the chain of trust. These vulnerabilities are due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit these vulnerabilities by copying a specific file to the local file system of an affected device and defining specific ROMMON variables. A successful exploit could allow the attacker to run arbitrary code on the underlying operating system (OS) with root privileges. To exploit these vulnerabilities, an attacker would need to have access to the root shell on the device or have physical access to the device.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
CiscoIos Xe16.12.1
CiscoAsr 902-
CiscoAsr 903-
CiscoAsr 907-
CiscoNcs 4206-
CiscoNcs 4216-
CiscoNcs 4216 F2B-

Related Weaknesses (CWE)

CWE-94CWE-749

References

FAQ

What is CVE-2020-3513?

CVE-2020-3513 is a vulnerability with a CVSS score of 6.7 (MEDIUM). Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (...

How severe is CVE-2020-3513?

CVE-2020-3513 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-3513?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Asr 902, Cisco Asr 903, Cisco Asr 907, Cisco Ncs 4206.