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Cisco SD-WAN Solution Packet Filtering Bypass Vulnerability

cisco-sa-20190807-sd-wan-bypass · Medium · Published · Updated

A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypass

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2019-1951
Cisco Bug IDsCSCvn67202, CSCvr64177
CVSS ScoreBase 5.8
Base 5.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
Product Names From Source
Cisco SD-WAN Solution, Cisco Catalyst SD-WAN

Related Products

Product CVE Evidence
Cisco SD-WAN Solution CVE-2019-1951 Cisco OpenVuln
Cisco Catalyst SD-WAN CVE-2019-1951 Cisco OpenVuln