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CVE-2021-1566
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 5.8/10
- Exploit Score
- 8.6/10
- Access Vector
- Network
- Access Complexity
- Medium
- Authentication Required
- None
- Impact Score
- 4.9/10
- Confidentiality Impact
- Partial
- Availability Impact
- None
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.4/10
- Exploit Score
- 2.2/10
- Access Vector
- Network
- Access Complexity
- High
- Privileges Required
- None
- Impact Score
- 5.2/10
- Confidentiality Impact
- High
- Availability Impact
- None
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
- | 12.5.3-035 | |
cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
13.0 | 13.0.0-030 | |
cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
13.5 | 13.5.3-010 | |
cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
- | 11.8.3-021 | |
cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
12.0.0 | 12.0.3-005 | |
cpe:2.3:a:cisco:web_security_appliance:-:*:*:*:*:*:*:* |
Yes
|
- | - | |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
12.5.0 | 12.5.1-043 |