CVE-2021-1243

published 2021-02-04

CVE-2021-1243: A vulnerability in the Local Packet Transport Services (LPTS) programming of the SNMP with the management plane protection feature of Cisco IOS XR Software…

Priority P3 47 high 7.5 CVSS 3.1

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

A vulnerability in the Local Packet Transport Services (LPTS) programming of the SNMP with the management plane protection feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to allow connections despite the management plane protection that is configured to deny access to the SNMP server of an affected device. This vulnerability is due to incorrect LPTS programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by connecting to an affected device using SNMP. A successful exploit could allow the attacker to connect to the device on the configured SNMP ports. Valid credentials are required to execute any of the SNMP requests.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_ios_xr_software	—	—
cisco	ios_xr	< 6.6.4	6.6.4
cisco	ios_xr	—	—
cisco	ios_xr	—	—
cisco	ios_xr	—	—
cisco	ios_xr	—	—
cisco	ios_xr	—	—
cisco	ios_xr	>= 7.0.0 < 7.0.2	7.0.2

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:N

vendor_cisco 5.3 MEDIUM

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CWE-284