CWE
362
Advisory Published
Updated

CVE-2020-3353: Cisco Identity Services Engine Denial of Service Vulnerability

First published: Wed Jun 03 2020(Updated: )

A vulnerability in the syslog processing engine of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a race condition that may occur when syslog messages are processed. An attacker could exploit this vulnerability by sending a high rate of syslog messages to an affected device. A successful exploit could allow the attacker to cause the Application Server process to crash, resulting in a DoS condition.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Identity Services Engine (ISE)=2.2.0.470
Cisco Identity Services Engine (ISE)=2.2.0.470-patch1
Cisco Identity Services Engine (ISE)=2.2.0.470-patch10
Cisco Identity Services Engine (ISE)=2.2.0.470-patch11
Cisco Identity Services Engine (ISE)=2.2.0.470-patch12
Cisco Identity Services Engine (ISE)=2.2.0.470-patch2
Cisco Identity Services Engine (ISE)=2.2.0.470-patch3
Cisco Identity Services Engine (ISE)=2.2.0.470-patch4
Cisco Identity Services Engine (ISE)=2.2.0.470-patch5
Cisco Identity Services Engine (ISE)=2.2.0.470-patch6
Cisco Identity Services Engine (ISE)=2.2.0.470-patch7
Cisco Identity Services Engine (ISE)=2.2.0.470-patch8
Cisco Identity Services Engine (ISE)=2.2.0.470-patch9
Cisco Identity Services Engine (ISE)=2.3.0.298
Cisco Identity Services Engine (ISE)=2.3.0.298-patch1
Cisco Identity Services Engine (ISE)=2.3.0.298-patch2
Cisco Identity Services Engine (ISE)=2.3.0.298-patch3
Cisco Identity Services Engine (ISE)=2.3.0.298-patch4
Cisco Identity Services Engine (ISE)=2.3.0.298-patch5
Cisco Identity Services Engine (ISE)=2.4.0.357
Cisco Identity Services Engine (ISE)=2.4.0.357-patch1

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Frequently Asked Questions

  • What is the severity of CVE-2020-3353?

    CVE-2020-3353 is classified as a high severity vulnerability.

  • How do I fix CVE-2020-3353?

    To fix CVE-2020-3353, upgrade to the latest version of the Cisco Identity Services Engine that includes the necessary patches.

  • What is the impact of CVE-2020-3353?

    The impact of CVE-2020-3353 can lead to a denial of service, causing affected devices to become unavailable.

  • Which versions of Cisco Identity Services Engine are affected by CVE-2020-3353?

    CVE-2020-3353 affects specific versions of Cisco Identity Services Engine including 2.2.0.470 and 2.3.0.298, along with their corresponding patches.

  • Who can be affected by CVE-2020-3353?

    CVE-2020-3353 can potentially affect any organization using vulnerable versions of Cisco Identity Services Engine.

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