CVE Vulnerability

CVE-2019-1806

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Small Business Sx200, Sx300, Sx500, ESW2 Series Managed Switches and Small Business Sx250, Sx350, Sx550 Series Switches could allow an authenticated, remote attacker to cause the SNMP application of an affected device to cease processing traffic, resulting in the CPU utilization reaching one hundred percent. Manual intervention may be required before a device resumes normal operations. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a malicious SNMP packet to an affected device. A successful exploit could allow the attacker to cause the device to cease forwarding traffic, which could result in a denial of service (DoS) condition. Cisco has released firmware updates that address this vulnerability.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

7.7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb-snmpdos Vendor Advisory
http://www.securityfocus.com/bid/108335 Third Party Advisory VDB Entry
Configurations

Configuration 1
Information

Published : 2019-05-15 10:29

Updated : 2020-10-16 03:30

NVD link : CVE-2019-1806

Mitre link : CVE-2019-1806

Products Affected

Cisco

Sg250x-24p Firmware

CWE
CWE-770