A vulnerability in the UDP forwarding code of Cisco IOS...

4.3 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-uhv6ZDeF

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Affected Vendor

Cisco

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Affected Software

Cisco IOS XR Software

Vulnerable Versions:

5.2.0, 5.2.1, 5.2.2, 5.2.4, 5.2.3, 5.2.5, 5.2.47, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 6.0.0, 6.0.1, 6.0.2, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.12, 6.1.22, 6.1.32, 6.1.36, 6.1.42, 6.2.1, 6.2.2, 6.2.3, 6.2.25, 6.2.11, 6.3.2, 6.3.3, 6.3.15, 6.4.1, 6.4.2, 6.4.3, 6.5.1, 6.5.2, 6.5.3, 6.5.25, 6.5.26, 6.5.28, 6.5.29, 6.5.32, 6.5.33, 6.6.2, 6.6.3, 6.6.25, 6.6.4, 7.0.1, 7.0.2, 7.0.12, 7.0.14, 7.1.1, 7.1.15, 7.1.2, 7.1.3, 6.7.1, 6.7.2, 6.7.3, 6.7.4, 7.2.0, 7.2.1, 7.2.2, 7.3.1, 7.3.15, 7.3.2, 7.3.3, 7.3.5, 7.3.6, 7.4.1, 7.4.2, 6.8.1, 6.8.2, 7.5.1, 7.5.3, 7.5.2, 7.5.4, 7.5.5, 7.6.1, 7.6.2, 7.7.1, 7.7.2, 7.7.21, 6.9.1, 6.9.2, 7.8.1, 7.8.2, 7.9.1, 7.9.2, 7.9.21, 7.10.1, 7.10.2, 7.11.1