Cisco SD-WAN vEdge Software Access Control List Bypass Vulnerability

5.8 CVSS

Vulnerability Description

A vulnerability in the access control list (ACL) processing of IPv4 packets of Cisco SD-WAN vEdge Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the improper enforcement of the implicit deny all at the end of a configured ACL. An attacker could exploit this vulnerability by attempting to send unauthorized traffic to an interface on an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device.

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-defaultacl-pSJk9nVF

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Affected Vendor

Cisco

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Affected Software

Cisco SD-WAN vEdge Cloud, Cisco SD-WAN vEdge Router

Vulnerable Versions:

20.9.1, 20.9.1.1, 20.9.2, 20.9.3, 20.9.3.1, 20.9.2.2, 20.9.2.3, 20.9.4, 20.9.5, 20.9.5.1, 20.9.6, 20.9.5.3, 20.3.1, 20.3.2, 20.4.1, 20.4.1.1, 20.3.3, 20.4.1.2, 20.4.2, 20.3.4, 20.3.5, 20.3.6, 20.3.7, 20.3.3.2, 20.3.4.3, 20.3.7.1, 20.3.5.1, 20.4.2.3, 20.3.7.2, 20.12.1, 20.3.8, 20.9.4.1777, 20.12.3.1