CWE
400
Advisory Published
Updated

CVE-2020-3372: Cisco SD-WAN vManage Software Denial of Service Vulnerability

First published: Thu Jul 16 2020(Updated: )

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to consume excessive system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a large number of crafted HTTP requests to the affected web-based management interface. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and could result in a DoS condition.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Sd-wan Firmware<19.2.3
Cisco Sd-wan Firmware>=20.1.0<20.1.12
Cisco 1100-4g Integrated Services Router
Cisco 1100-4gltegb Integrated Services Router
Cisco 1100-4gltena Integrated Services Router
Cisco 1100-6g Integrated Services Router
Cisco Vedge 100
Cisco Vedge 1000
Cisco Vedge 100b
Cisco Vedge 100m
Cisco Vedge 100wm
Cisco Vedge 2000
Cisco Vedge 5000

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Frequently Asked Questions

  • What is CVE-2020-3372?

    CVE-2020-3372 is a vulnerability in the web-based management interface of Cisco SD-WAN vManage Software that could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.

  • How does CVE-2020-3372 affect Cisco SD-WAN vManage Software?

    CVE-2020-3372 affects the web-based management interface of Cisco SD-WAN vManage Software and can be exploited by an authenticated, remote attacker to consume excessive system memory and cause a DoS condition.

  • What is the severity of CVE-2020-3372?

    CVE-2020-3372 has a severity rating of 6.5 (Medium).

  • How can I fix CVE-2020-3372?

    To fix CVE-2020-3372, Cisco recommends upgrading to a fixed software release.

  • Where can I find more information about CVE-2020-3372?

    More information about CVE-2020-3372 can be found on the Cisco Security Advisory at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-emvman-3y6LuTcZ.

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