Executive Summary

Informations
Name CVE-2021-1625 First vendor Publication 2021-09-23
Vendor Cve Last vendor Modification 2021-10-05

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Overall CVSS Score 5.8
Base Score 5.8 Environmental Score 5.8
impact SubScore 1.4 Temporal Score 5.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact Low Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the Zone-Based Policy Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent the Zone-Based Policy Firewall from correctly classifying traffic. This vulnerability exists because ICMP and UDP responder-to-initiator flows are not inspected when the Zone-Based Policy Firewall has either Unified Threat Defense (UTD) or Application Quality of Experience (AppQoE) configured. An attacker could exploit this vulnerability by attempting to send UDP or ICMP flows through the network. A successful exploit could allow the attacker to inject traffic through the Zone-Based Policy Firewall, resulting in traffic being dropped because it is incorrectly classified or in incorrect reporting figures being produced by high-speed logging (HSL).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1625

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 971

Sources (Detail)

Source Url
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

Alert History

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Date Informations
2021-10-14 01:43:30
  • Multiple Updates
2021-10-13 00:23:09
  • Multiple Updates
2021-10-08 09:23:03
  • Multiple Updates
2021-10-08 01:43:55
  • Multiple Updates
2021-10-06 00:22:58
  • Multiple Updates
2021-09-24 01:45:41
  • Multiple Updates
2021-09-24 01:43:04
  • Multiple Updates
2021-09-23 17:22:52
  • Multiple Updates
2021-09-23 09:22:55
  • First insertion