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CVE-2021-1285

Multiple Cisco Products SNORT Ethernet Frame Decoder Denial of Service Vulnerability

Published: Nov 18, 2024Updated: Nov 18, 2024 Sources: CVE List NVD BDUCWE-770
NVD MITRE
7.4CVSSHIGH
EPSS Score
2.7%
Top 16.1%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

Multiple Cisco products are affected by a vulnerability in the Ethernet Frame Decoder of the Snort detection engine that could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper handling of error conditions when processing Ethernet frames. An attacker could exploit this vulnerability by sending malicious Ethernet frames through an affected device. A successful exploit could allow the attacker to exhaust disk space on the affected device, which could result in administrators being unable to log in to the device or the device being unable to boot up correctly.Note: Manual intervention is required to recover from this situation. Customers are advised to contact the Cisco Technical Assistance Center (TAC) to help recover a device in this condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:CC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-770

Affected Products

Cisco UTD SNORT IPS Engine SoftwareCiscoNetworking Infrastructure
SnortCisco Systems Inc.Networking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Attack Graph

Products CVE Techniques Tactics

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Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ethernet-dos-HGXgJH8n
sec.cloudapps.cisco.com
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ethernet-dos-HGXgJH8n
tools.cisco.com

Timeline

Published
Nov 18, 2024
Last Updated
Nov 18, 2024

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