CVE-2023-20200

Severity Score

6.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Simple Network Management Protocol (SNMP) service of Cisco FXOS Software for Firepower 4100 Series and Firepower 9300 Security Appliances and of Cisco UCS 6300 Series Fabric Interconnects could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to the improper handling of specific SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Note: This vulnerability affects all supported SNMP versions. To exploit this vulnerability through SNMPv2c or earlier, an attacker must know the SNMP community string that is configured on an affected device. To exploit this vulnerability through SNMPv3, the attacker must have valid credentials for an SNMP user who is configured on the affected device.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-10-27 CVE Reserved
2023-08-23 CVE Published
2024-08-02 CVE Updated
2024-08-29 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fp-ucsfi-snmp-dos-qtv69NAO	2024-01-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Firepower 9300 Firmware Search vendor "Cisco" for product "Firepower 9300 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 9300 Search vendor "Cisco" for product "Firepower 9300"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 4143 Firmware Search vendor "Cisco" for product "Firepower 4143 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 4145 Search vendor "Cisco" for product "Firepower 4145"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 4112 Firmware Search vendor "Cisco" for product "Firepower 4112 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 4112 Search vendor "Cisco" for product "Firepower 4112"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6324 Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect Firmware"	>= 4.1 < 4.1\(3l\) Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect Firmware" and version " >= 4.1 < 4.1\(3l\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6324 Fabric Interconnect Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6324 Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect Firmware"	>= 4.2 < 4.2\(3d\) Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect Firmware" and version " >= 4.2 < 4.2\(3d\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6324 Fabric Interconnect Search vendor "Cisco" for product "Ucs 6324 Fabric Interconnect"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 4125 Firmware Search vendor "Cisco" for product "Firepower 4125 Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 4125 Search vendor "Cisco" for product "Firepower 4125"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 4115 Search vendor "Cisco" for product "Firepower 4115"	-	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 4115 Search vendor "Cisco" for product "Firepower 4115"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6332 Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect Firmware"	>= 4.1 < 4.1\(3l\) Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect Firmware" and version " >= 4.1 < 4.1\(3l\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6332 Fabric Interconnect Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6332 Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect Firmware"	>= 4.2 <= 4.2\(3b\) Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect Firmware" and version " >= 4.2 <= 4.2\(3b\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6332 Fabric Interconnect Search vendor "Cisco" for product "Ucs 6332 Fabric Interconnect"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6332-16up Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect Firmware"	>= 4.1 < 4.1\(3l\) Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect Firmware" and version " >= 4.1 < 4.1\(3l\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6332-16up Fabric Interconnect Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect"	-	-	Safe
Cisco Search vendor "Cisco"	Ucs 6332-16up Fabric Interconnect Firmware Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect Firmware"	>= 4.2 < 4.2\(3b\) Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect Firmware" and version " >= 4.2 < 4.2\(3b\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs 6332-16up Fabric Interconnect Search vendor "Cisco" for product "Ucs 6332-16up Fabric Interconnect"	-	-	Safe