Vulnerability Monitor

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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.

Published

2021-06-16T18:15:08.710

Last Modified

2024-11-21T05:44:38.237

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Secondary
    CWE-296
  • Type: Primary
    CWE-295
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco email_security_appliance - Yes
Operating System cisco asyncos < 12.5.3-035 Yes
Application cisco email_security_appliance - Yes
Operating System cisco asyncos < 13.0.0-030 Yes
Application cisco email_security_appliance - Yes
Operating System cisco asyncos < 13.5.3-010 Yes
Application cisco web_security_appliance - Yes
Operating System cisco asyncos < 11.8.3-021 Yes
Application cisco web_security_appliance - Yes
Operating System cisco asyncos < 12.0.3-005 Yes
Application cisco web_security_appliance - Yes
Operating System cisco asyncos < 12.5.1-043 Yes
References