CVE-2021-1566

A vulnerability in the Cisco Advanced Malware Protection (AMP) for Endpoints integration of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to intercept traffic between an affected device and the AMP servers. This vulnerability is due to improper certificate validation when an affected device establishes TLS connections. A man-in-the-middle attacker could exploit this vulnerability by sending a crafted TLS packet to an affected device. A successful exploit could allow the attacker to spoof a trusted host and then extract sensitive information or alter certain API requests.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

Configuration 5 (hide)

OR cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

Configuration 6 (hide)

OR cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*

History

23 Jun 2021, 23:02

Type Values Removed Values Added
CWE CWE-295
CVSS v2 : unknown
v3 : unknown
v2 : 5.8
v3 : 7.4
CPE cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:*
References (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-wsa-cert-vali-n8L97RW - (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-wsa-cert-vali-n8L97RW - Vendor Advisory

16 Jun 2021, 19:07

Type Values Removed Values Added
New CVE

Information

Published : 2021-06-16 18:15

Updated : 2024-02-04 21:47


NVD link : CVE-2021-1566

Mitre link : CVE-2021-1566

CVE.ORG link : CVE-2021-1566


JSON object : View

Products Affected

cisco

  • web_security_appliance
  • asyncos
  • email_security_appliance
CWE
CWE-295

Improper Certificate Validation

CWE-296

Improper Following of a Certificate's Chain of Trust