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CVE-2021-1402
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
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..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 7.8/10
- Exploit Score
- 10/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 6.9/10
- Confidentiality Impact
- None
- Availability Impact
- Complete
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 8.6/10
- Exploit Score
- 3.9/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- None
- 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:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* |
Yes
|
6.3.0 | 6.4.0 | |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* |
Yes
|
6.5.0 | 6.6.0 | |
| cpe:2.3:a:cisco:firepower_threat_defense_virtual:-:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:* |
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:isa_3000:-:*:*:*:*:*:*:* |
No
|
- |