Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-1446 | First vendor Publication | 2021-03-24 |
Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | |||
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Overall CVSS Score | 7.5 | ||
Base Score | 7.5 | Environmental Score | 7.5 |
impact SubScore | 3.6 | Temporal Score | 7.5 |
Exploitabality Sub Score | 3.9 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.1 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the DNS application layer gateway (ALG) functionality used by Network Address Translation (NAT) in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a logic error that occurs when an affected device inspects certain DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through an affected device that is performing NAT for DNS packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition on an affected device. The vulnerability can be exploited only by traffic that is sent through an affected device via IPv4 packets. The vulnerability cannot be exploited via IPv6 traffic. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1446 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-754 | Improper Check for Unusual or Exceptional Conditions |
CPE : Common Platform Enumeration
Sources (Detail)
Source | Url |
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CISCO | https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s... |
Alert History
Date | Informations |
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2023-11-07 21:35:22 |
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2021-05-04 14:08:26 |
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2021-04-22 03:13:34 |
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2021-03-30 00:22:52 |
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2021-03-26 12:36:47 |
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