Vulnerability Monitor

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CVE-2020-3562

A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. No manual intervention is needed to recover the device after it has reloaded.

Published

2020-10-21T19:15:17.887

Last Modified

2024-11-21T05:31:19.267

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

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

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

8.6

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-119
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense 6.3.0 Yes
Application cisco firepower_threat_defense 6.4.0 Yes
Application cisco firepower_threat_defense 6.5.0 Yes
Hardware cisco firepower_2110 - No
Hardware cisco firepower_2120 - No
Hardware cisco firepower_2130 - No
Hardware cisco firepower_2140 - No
References