// For flags

CVE-2020-3476

Cisco IOS XE Software Arbitrary File Overwrite Vulnerability

Severity Score

6.0
*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 CLI implementation of a specific command of Cisco IOS XE Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying host file system. The vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.

Una vulnerabilidad en la implementación de un comando específico de la CLI de Cisco IOS XE Software, podría permitir a un atacante local autenticado sobrescribir archivos arbitrarios en el sistema de archivos del host subyacente. La vulnerabilidad es debido a una comprobación insuficiente de los parámetros de un comando de la CLI específico. Un atacante podría explotar esta vulnerabilidad al emitir ese comando con parámetros específicos. Una explotación con éxito podría permitir al atacante sobrescribir el contenido de cualquier archivo arbitrario que resida en el sistema de archivos del host subyacente.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-09-24 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-11-13 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-552: Files or Directories Accessible to External Parties
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"
 Ios
Search vendor "Cisco" for product "Ios"
 16.9
Search vendor "Cisco" for product "Ios" and version "16.9"
-
Affected
Cisco
Search vendor "Cisco"
 Ios
Search vendor "Cisco" for product "Ios"
 16.10.1
Search vendor "Cisco" for product "Ios" and version "16.10.1"
-
Affected