CVE-2020-3353

Cisco Identity Services Engine Denial of Service Vulnerability

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

Una vulnerabilidad en el motor de procesamiento de syslog de Cisco Identity Services Engine (ISE), podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a una condición de carrera que puede ocurrir cuando los mensajes syslog son procesados. Un atacante podría explotar esta vulnerabilidad mediante el envío de una alta tasa de mensajes syslog hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar que el proceso Application Server se bloquee, resultando en una condición DoS.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-06-03 CVE Published
2023-03-07 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-dos-qNzq39K7	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch1		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch10		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch11		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch12		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch2		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch3		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch4		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch5		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch6		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch7		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch8		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.2.0.470 Search vendor "Cisco" for product "Identity Services Engine" and version "2.2.0.470"		patch9		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		patch1		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		patch2		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		patch3		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		patch4		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.3.0.298 Search vendor "Cisco" for product "Identity Services Engine" and version "2.3.0.298"		patch5		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.4.0.357 Search vendor "Cisco" for product "Identity Services Engine" and version "2.4.0.357"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.4.0.357 Search vendor "Cisco" for product "Identity Services Engine" and version "2.4.0.357"		patch1		Affected