// For flags

CVE-2019-1816

Cisco Web Security Appliance Privilege Escalation Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the log subscription subsystem of the Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. The vulnerability is due to insufficient validation of user-supplied input on the web and command-line interface. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.

Una vulnerabilidad en el subsistema de Subscripción de Registro (log subscription) de Cisco Web Security Appliance (WSA) podría permitir a un atacante local autorizado ejecutar la inyección de comandos y elevar los privilegios a root. La vulnerabilidad es debido a la comprobación insuficiente de la entrada suministrada por el usuario en la web y en la interfaz de línea de comandos. Un atacante podría aprovechar esta vulnerabilidad al identificarse en el dispositivo afectado e inyectar comandos de scripting en el ámbito del subsistema de suscripción de registro. Una operación con éxito podría permitir al atacante ejecutar comandos arbitrarios en el sistema operativo subyacente y elevar los privilegios a root.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-05-03 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
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"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 10.5.2-072
Search vendor "Cisco" for product "Web Security Appliance" and version "10.5.2-072"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 11.0.0-641
Search vendor "Cisco" for product "Web Security Appliance" and version "11.0.0-641"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 11.5.0-fcs-614
Search vendor "Cisco" for product "Web Security Appliance" and version "11.5.0-fcs-614"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 wsa10.5.0-fcs-000
Search vendor "Cisco" for product "Web Security Appliance" and version "wsa10.5.0-fcs-000"
-
Affected