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CVE-2021-1422
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker or an unauthenticated attacker in a man-in-the-middle position to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error in how the software cryptography module handles specific types of decryption errors. An attacker could exploit this vulnerability by sending malicious packets over an established IPsec connection. A successful exploit could cause the device to crash, forcing it to reload. Important: Successful exploitation of this vulnerability would not cause a compromise of any encrypted data. Note: This vulnerability affects only Cisco ASA Software Release 9.16.1 and Cisco FTD Software Release 7.0.0..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 6.8/10
- Exploit Score
- 8/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- Single
- Impact Score
- 6.9/10
- Confidentiality Impact
- None
- Availability Impact
- Complete
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.7/10
- Exploit Score
- 3.1/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- Low
- Impact Score
- 4/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Changed
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.16.1: |
Yes
|
- | ||
cpe:2.3:o:cisco:firepower_threat_defense:7.0.0.0:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:a:cisco:adaptive_security_virtual_appliance:-:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:firepower_2100:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:ftd_virtual:-:*:*:*:*:*:*:* |
No
|
- |