// For flags

CVE-2021-1359

Cisco Web Security Appliance Privilege Escalation Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A vulnerability in the configuration management of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied XML input for the web interface. An attacker could exploit this vulnerability by uploading crafted XML configuration files that contain scripting code to a vulnerable device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. An attacker would need a valid user account with the rights to upload configuration files to exploit this vulnerability.

Una vulnerabilidad en la administración de la configuración de Cisco AsyncOS para Cisco Web Security Appliance (WSA), podría permitir a un atacante remoto autenticado llevar a cabo una inyección de comandos y elevar los privilegios a root. Esta vulnerabilidad se presenta debido a que la comprobación de la entrada XML suministrada por el usuario para la interfaz web es insuficiente. Un atacante podría explotar esta vulnerabilidad al cargar archivos de configuración XML diseñados que contengan código de scripting en un dispositivo vulnerable. Una explotación con éxito podría permitir al atacante ejecutar comandos arbitrarios en el sistema operativo subyacente y elevar los privilegios a root. Un atacante necesitaría una cuenta de usuario válida con los derechos para cargar archivos de configuración para explotar esta vulnerabilidad

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-07-08 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-112: Missing XML 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"
 11.8.0-429
Search vendor "Cisco" for product "Web Security Appliance" and version "11.8.0-429"
-
Affected
Cisco
Search vendor "Cisco"
 Web Security Appliance
Search vendor "Cisco" for product "Web Security Appliance"
 11.8.0-453
Search vendor "Cisco" for product "Web Security Appliance" and version "11.8.0-453"
-
Affected
Cisco
Search vendor "Cisco"
 Asyncos
Search vendor "Cisco" for product "Asyncos"
 >= 11.8.0 < 12.0.3-005
Search vendor "Cisco" for product "Asyncos" and version " >= 11.8.0 < 12.0.3-005"
-
Affected
Cisco
Search vendor "Cisco"
 Asyncos
Search vendor "Cisco" for product "Asyncos"
 >= 12.5.0 < 12.5.2
Search vendor "Cisco" for product "Asyncos" and version " >= 12.5.0 < 12.5.2"
-
Affected