CVE-2024-20319
A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Ne
Description
A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane (SNMP) server of an affected device. This vulnerability is due to incorrect UDP forwarding programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by attempting to perform an SNMP operation using broadcast as the destination address that could be processed by an affected device that is configured with an SNMP server. A successful exploit could allow the attacker to communicate to the device on the configured SNMP ports. Although an unauthenticated attacker could send UDP datagrams to the configured SNMP port, only an authenticated user can retrieve or modify data using SNMP requests.
Weakness: CWE-284
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XR Software | Routing & Switching | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco IOS XR Software
- cisco · ios_xr
Vendor advisory
Cisco IOS XR Software SNMP Management Plane Protection ACL Bypass Vulnerability
Cisco’s rating: Medium (advisory CVSS 4.3) · Published Mar 13, 2024
Bug ID: CSCwh31469
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from