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.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios_xr | Cisco | 6.1.1 (excluding) | 6.6.4 (excluding) |
| Ios_xr | Cisco | 7.0.0 (including) | 7.0.2 (excluding) |
| Ios_xr | Cisco | 6.7.1 (including) | 6.7.1 (including) |
| Ios_xr | Cisco | 7.0.11 (including) | 7.0.11 (including) |
| Ios_xr | Cisco | 7.1.0 (including) | 7.1.0 (including) |
| Ios_xr | Cisco | 7.2.0 (including) | 7.2.0 (including) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: