Executive Summary

Informations
Name CVE-2021-34783 First vendor Publication 2021-10-27
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
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:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34783

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 170
Application 102
Os 768
Os 2

Sources (Detail)

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

Alert History

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Date Informations
2023-11-09 21:32:38
  • Multiple Updates
2023-11-07 21:33:34
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2023-09-19 13:15:48
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2023-08-17 00:28:24
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2023-08-16 21:28:21
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2023-08-16 13:09:53
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2023-08-13 02:06:55
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2023-08-12 13:25:31
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2023-08-12 01:23:17
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2023-08-11 13:17:46
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2023-08-11 01:24:03
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2023-08-07 02:06:03
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2023-08-06 13:15:45
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2023-08-06 01:23:01
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2023-08-05 02:06:07
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2023-08-04 13:16:07
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2023-08-04 01:23:22
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2023-07-15 02:08:07
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2023-07-14 13:16:11
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2023-07-14 01:23:10
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2023-03-31 02:08:56
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2023-03-29 13:01:48
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2023-03-29 02:18:19
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2023-03-28 12:23:23
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2022-11-30 01:58:30
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2022-11-23 01:59:27
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2022-11-22 01:59:44
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2022-11-18 13:03:18
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2022-10-12 01:59:24
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2022-10-11 13:07:58
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2022-10-11 01:22:50
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2021-12-29 01:48:25
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2021-10-29 21:22:54
  • Multiple Updates
2021-10-28 00:22:53
  • First insertion