7.5
CWE
119
Advisory Published

cisco-sa-20180718-sdwan-dos: Cisco SD-WAN Solution Zero Touch Provisioning Denial of Service Vulnerability

First published: Wed Jul 18 2018(Updated: )

A vulnerability in the Zero Touch Provisioning service of the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect bounds checks for certain values in packets that are sent to the Zero Touch Provisioning service of the affected software. An attacker could exploit this vulnerability by sending malicious packets to the affected software for processing. When the software processes the packets, a buffer overflow condition could occur and cause an affected device to reload. A successful exploit could allow the attacker to cause a temporary DoS condition while the device reloads. This vulnerability can be exploited only by traffic that is destined for an affected device. It cannot be exploited by traffic that is transiting a device. Cisco has released software updates that address this vulnerability. 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-20180718-sdwan-dos

Affected SoftwareAffected VersionHow to fix
Cisco SD-WAN firmware

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of cisco-sa-20180718-sdwan-dos?

    The severity of cisco-sa-20180718-sdwan-dos is rated as high due to its potential to cause a denial of service condition.

  • How do I fix cisco-sa-20180718-sdwan-dos?

    To fix cisco-sa-20180718-sdwan-dos, update your Cisco SD-WAN Solution to the latest firmware version as recommended by Cisco.

  • What causes the vulnerability cisco-sa-20180718-sdwan-dos?

    The vulnerability cisco-sa-20180718-sdwan-dos is caused by incorrect bounds checks on certain values in packets processed by the Zero Touch Provisioning service.

  • Which products are affected by cisco-sa-20180718-sdwan-dos?

    The cisco-sa-20180718-sdwan-dos vulnerability affects the Cisco SD-WAN Solution.

  • Can cisco-sa-20180718-sdwan-dos be exploited remotely?

    Yes, cisco-sa-20180718-sdwan-dos can be exploited remotely by an unauthenticated attacker.

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