// For flags

CVE-2019-1833

Cisco Firepower Threat Defense Software SSL/TLS Policy Bypass Vulnerability

Severity Score

5.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol parser of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies. The vulnerability is due to improper parsing of specific attributes in a TLS packet header. An attacker could exploit this vulnerability by sending malicious TLS messages to the affected system. A successful exploit could allow the attacker to bypass the configured policies for the system, which could allow traffic to flow through without being inspected.

Una vulnerabilidad en Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol parser of Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autorizado omitir las políticas configuradas. La vulnerabilidad es debido a un análisis incorrecto de atributos específicos en un encabezado de paquete TLS. Un atacante podría explotar esta vulnerabilidad enviando mensajes TLS maliciosos al sistema afectado. Una explotación exito podría permitir al atacante eludir las políticas configuradas para el sistema, lo que podría permitir que el tráfico fluya sin ser inspeccionado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-05-16 CVE Published
  • 2024-10-06 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-693: Protection Mechanism Failure
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Firepower Management Center
Search vendor "Cisco" for product "Firepower Management Center"
 6.1.0
Search vendor "Cisco" for product "Firepower Management Center" and version "6.1.0"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Management Center
Search vendor "Cisco" for product "Firepower Management Center"
 6.2.0
Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.0"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Management Center
Search vendor "Cisco" for product "Firepower Management Center"
 6.2.1
Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.1"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Management Center
Search vendor "Cisco" for product "Firepower Management Center"
 6.2.2
Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.2"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Management Center
Search vendor "Cisco" for product "Firepower Management Center"
 6.2.3
Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.3"
-
Affected