Executive Summary

Summary
TitleCisco Small Business Series Switches Simple Network Management Protocol Denial of Service Vulnerability
Informations
Namecisco-sa-20190515-sb-snmpdosFirst vendor Publication2019-05-15
VendorCiscoLast vendor Modification2019-05-15
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:C)
Cvss Base Score6.8Attack RangeNetwork
Cvss Impact Score6.9Attack ComplexityLow
Cvss Expoit Score8AuthenticationRequires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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. There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb-snmpdos ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-sb-snmpdos"]

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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

%idName
100 %CWE-400Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

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Alert History

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0
1
2
DateInformations
2019-05-21 17:21:38
  • Multiple Updates
2019-05-16 05:21:14
  • Multiple Updates
2019-05-15 21:18:30
  • First insertion