Resource management error in Cisco Systems, Inc products - CVE-2020-3351

Vulnerability identifier: #VU31691

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-3351

CWE-ID: CWE-399

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of fields in Cisco SD-WAN peering messages that are encapsulated in UDP packets. A remote attacker can send specially crafted UDP messages and perform a denial of service (DoS) attack.

Cisco SD-WAN vBond Orchestrator
Cisco SD-WAN vEdge 100 Series Routers
Cisco SD-WAN vEdge 1000 Series Routers
Cisco SD-WAN vEdge 2000 Series Routers
Cisco SD-WAN vEdge 5000 Series Routers
Cisco SD-WAN vEdge Cloud Router
Catalyst SD-WAN Manager (formerly SD-WAN vManage)
Catalyst SD-WAN Controller (formerly SD-WAN vSmart)

Install updates from vendor's website.

Cisco SD-WAN vBond Orchestrator - addressed in versions 17.2.7, 18.3
Cisco SD-WAN vEdge 100 Series Routers - addressed in versions 17.2.7, 18.3.0
Cisco SD-WAN vEdge 1000 Series Routers - addressed in versions 17.2.7, 18.3.0
Cisco SD-WAN vEdge 2000 Series Routers - addressed in versions 17.2.7, 18.3.0
Cisco SD-WAN vEdge 5000 Series Routers - addressed in versions 17.2.7, 18.3.0
Cisco SD-WAN vEdge Cloud Router - addressed in versions 17.2.7, 18.3.0
Catalyst SD-WAN Manager (formerly SD-WAN vManage) - addressed in versions 17.2.7, 18.3
Catalyst SD-WAN Controller (formerly SD-WAN vSmart) - addressed in versions 17.2.7, 18.3

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdw-dos-KWOdyHnB

• Multiple vulnerabilities in Cisco SD-WAN Solution Software