CVE-2021-1402

Published on: 04/29/2021 12:00:00 AM UTC

Last Modified on: 08/05/2022 04:17:00 PM UTC

CVE-2021-1402 - advisory for cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Certain versions of Asa 5512-x from Cisco contain the following vulnerability:

A vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message through an affected device. SSL/TLS messages sent to an affected device do not trigger this vulnerability. A successful exploit could allow the attacker to cause a process to crash. This crash would then trigger a reload of the device. No manual intervention is needed to recover the device after the reload.

  • CVE-2021-1402 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Firepower Threat Defense Software version n/a

CVSS3 Score: 8.6 - HIGH

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
CHANGED NONE NONE HIGH

CVSS2 Score: 7.8 - HIGH

Access
Vector ⓘ		 Access
Complexity		 Authentication
NETWORK LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
NONE NONE COMPLETE

CVE References

Description Tags ⓘ Link
Cisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service Vulnerability tools.cisco.com
text/html
 URL Logo CISCO 20210428 Cisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service Vulnerability
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Related QID Numbers

  • 316955 Cisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service Vulnerability(cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c)
  • 316979 Cisco Firepower Threat Defense Software SSL Decryption Policy Denial of Service Vulnerability(cisco-sa-ftd-ssl-decrypt-dos-DdyLuK6c)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Hardware Device InfoCiscoAsa 5512-x-AllAllAll
Hardware Device InfoCiscoAsa 5515-x-AllAllAll
Hardware Device InfoCiscoAsa 5525-x-AllAllAll
Hardware Device InfoCiscoAsa 5545-x-AllAllAll
Hardware Device InfoCiscoAsa 5555-x-AllAllAll
Hardware Device InfoCiscoFirepower 1010-AllAllAll
Hardware Device InfoCiscoFirepower 1120-AllAllAll
Hardware Device InfoCiscoFirepower 1140-AllAllAll
Hardware Device InfoCiscoFirepower 1150-AllAllAll
Hardware Device InfoCiscoFirepower 2110-AllAllAll
Hardware Device InfoCiscoFirepower 2120-AllAllAll
Hardware Device InfoCiscoFirepower 2130-AllAllAll
Hardware Device InfoCiscoFirepower 2140-AllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
ApplicationCiscoFirepower Threat Defense Virtual-AllAllAll
Hardware Device InfoCiscoIsa 3000-AllAllAll
  • cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense_virtual:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isa_3000:-:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-1402 : A vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense… twitter.com/i/web/status/1… 2021-04-29 17:20:18
Reddit Logo Icon /r/netcve CVE-2021-1402 2021-04-29 17:41:33
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