Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-1873

A vulnerability in the cryptographic driver for Cisco Adaptive Security Appliance Software (ASA) and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reboot unexpectedly. The vulnerability is due to incomplete input validation of a Secure Sockets Layer (SSL) or Transport Layer Security (TLS) ingress packet header. An attacker could exploit this vulnerability by sending a crafted TLS/SSL packet to an interface on the targeted device. An exploit could allow the attacker to cause the device to reload, which will result in a denial of service (DoS) condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. A valid SSL or TLS session is required to exploit this vulnerability.

Published

2019-07-10T18:15:11.003

Last Modified

2024-11-21T04:37:35.247

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

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

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

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco asa_5506-x_firmware 9.6\(4.16\) Yes
Operating System cisco asa_5506-x_firmware 9.8\(3.8\) Yes
Hardware cisco asa_5506-x - No
Operating System cisco asa_5506h-x_firmware 9.6\(4.16\) Yes
Operating System cisco asa_5506h-x_firmware 9.8\(3.8\) Yes
Hardware cisco asa_5506h-x - No
Operating System cisco asa_5506w-x_firmware 9.6\(4.16\) Yes
Operating System cisco asa_5506w-x_firmware 9.8\(3.8\) Yes
Hardware cisco asa_5506w-x - No
Operating System cisco asa_5508-x_firmware 9.6\(4.16\) Yes
Operating System cisco asa_5508-x_firmware 9.8\(3.8\) Yes
Hardware cisco asa_5508-x - No
Operating System cisco asa_5516-x_firmware 9.6\(4.16\) Yes
Operating System cisco asa_5516-x_firmware 9.8\(3.8\) Yes
Hardware cisco asa_5516-x - No
References