// For flags

CVE-2020-3477

Cisco IOS and IOS XE Software Information Disclosure Vulnerability

Severity Score

5.5
*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 CLI parser of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to access files from the flash: filesystem. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain read-only access to files that are located on the flash: filesystem that otherwise might not have been accessible.

Una vulnerabilidad en el analizador de la CLI de Cisco IOS Software y Cisco IOS XE Software, podría permitir a un atacante local autenticado acceder a archivos desde la flash: filesystem. La vulnerabilidad es debido a una aplicación insuficiente de restricciones durante la ejecución de un comando específico. Un atacante podría explotar esta vulnerabilidad mediante el uso de un comando específico en la línea de comandos. Una explotación con éxito podría permitir al atacante conseguir acceso de solo lectura a archivos que están ubicados en la flash: filesystem que de otro modo no podría haber sido accesible.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-09-24 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-863: Incorrect Authorization
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"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2610xm
Search vendor "Cisco" for product "2610xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2611xm
Search vendor "Cisco" for product "2611xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2612
Search vendor "Cisco" for product "2612"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2620xm
Search vendor "Cisco" for product "2620xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2621xm
Search vendor "Cisco" for product "2621xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2650xm
Search vendor "Cisco" for product "2650xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2651xm
Search vendor "Cisco" for product "2651xm"
--
Safe
Cisco
Search vendor "Cisco"
Ios
Search vendor "Cisco" for product "Ios"
16.3.11
Search vendor "Cisco" for product "Ios" and version "16.3.11"
-
Affected
in Cisco
Search vendor "Cisco"
2691
Search vendor "Cisco" for product "2691"
--
Safe