CVE-2020-3503

Published: Sep 24, 2020Modified: Dec 19, 2024

6.0

Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Exploitability: 0.8 / Impact: 5.2

Source: NVD

Description

A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could exploit this vulnerability by connecting to an affected device's guest shell, and accessing or modifying restricted files. A successful exploit could allow the attacker to view or modify restricted information or configurations that are normally not accessible to system administrators.

Affected (1)

Products: Cisco: Ios Xe

Cisco

1 product

Ios Xe

Configuration A

1 vulnerable · 127 platform

Vulnerable Software	Affected Versions
Cisco Ios Xe	Version 16.12.1

Running on/with	Platform Versions
Cisco 1100 4g Integrated Services Router	All versions
Cisco 1100 4gltegb Integrated Services Router	All versions
Cisco 1100 4gltena Integrated Services Router	All versions
Cisco 1100 4p Integrated Services Router	All versions
Cisco 1100 6g Integrated Services Router	All versions
Cisco 1100 8p Integrated Services Router	All versions
Cisco 1100 Lte Integrated Services Router	All versions
Cisco 1100 Integrated Services Router	All versions
Cisco 1101 4p Integrated Services Router	All versions
Cisco 1101 Integrated Services Router	All versions
Cisco 1109 2p Integrated Services Router	All versions
Cisco 1109 4p Integrated Services Router	All versions
Cisco 1109 Integrated Services Router	All versions
Cisco 1111x 8p Integrated Services Router	All versions
Cisco 1111x Integrated Services Router	All versions
Cisco 111x Integrated Services Router	All versions
Cisco 1120 Integrated Services Router	All versions
Cisco 1160 Integrated Services Router	All versions
Cisco 4221 Integrated Services Router	All versions
Cisco 4331 Integrated Services Router	All versions
Cisco 4431 Integrated Services Router	All versions
Cisco 4451 Integrated Services Router	All versions
Cisco 4461 Integrated Services Router	All versions
Cisco Asr1001 Hx	All versions
Cisco Asr1001 Hx Rf	All versions
Cisco Asr1001 X Rf	All versions
Cisco Asr1001 X Ws	All versions
Cisco Asr1002 Hx	All versions
Cisco Asr1002 Hx Rf	All versions
Cisco Asr1002 Hx Ws	All versions
Cisco Asr1002 X Rf	All versions
Cisco Asr1002 X Ws	All versions
Cisco Asr 1000 X	All versions
Cisco Asr 1001	All versions
Cisco Asr 1001 X	All versions
Cisco Asr 1002	All versions
Cisco Asr 1002 X	All versions
Cisco Asr 1004	All versions
Cisco Asr 1006	All versions
Cisco Asr 1013	All versions
Cisco Catalyst 9800 40	All versions
Cisco Catalyst 9800 80	All versions
Cisco Catalyst 9800 Cl	All versions
Cisco Catalyst 9800 L	All versions
Cisco Catalyst 9800 L C	All versions
Cisco Catalyst 9800 L F	All versions
Cisco Catalyst C9200 24p	All versions
Cisco Catalyst C9200 24t	All versions
Cisco Catalyst C9200 48p	All versions
Cisco Catalyst C9200 48t	All versions
Cisco Catalyst C9200l 24p 4g	All versions
Cisco Catalyst C9200l 24p 4x	All versions
Cisco Catalyst C9200l 24pxg 2y	All versions
Cisco Catalyst C9200l 24pxg 4x	All versions
Cisco Catalyst C9200l 24t 4g	All versions
Cisco Catalyst C9200l 24t 4x	All versions
Cisco Catalyst C9200l 48p 4g	All versions
Cisco Catalyst C9200l 48p 4x	All versions
Cisco Catalyst C9200l 48pxg 2y	All versions
Cisco Catalyst C9200l 48pxg 4x	All versions
Cisco Catalyst C9200l 48t 4g	All versions
Cisco Catalyst C9200l 48t 4x	All versions
Cisco Catalyst C9300 24p	All versions
Cisco Catalyst C9300 24s	All versions
Cisco Catalyst C9300 24t	All versions
Cisco Catalyst C9300 24u	All versions
Cisco Catalyst C9300 24ux	All versions
Cisco Catalyst C9300 48p	All versions
Cisco Catalyst C9300 48s	All versions
Cisco Catalyst C9300 48t	All versions
Cisco Catalyst C9300 48u	All versions
Cisco Catalyst C9300 48un	All versions
Cisco Catalyst C9300 48uxm	All versions
Cisco Catalyst C9300l 24p 4g	All versions
Cisco Catalyst C9300l 24p 4x	All versions
Cisco Catalyst C9300l 24t 4g	All versions
Cisco Catalyst C9300l 24t 4x	All versions
Cisco Catalyst C9300l 48p 4g	All versions
Cisco Catalyst C9300l 48p 4x	All versions
Cisco Catalyst C9300l 48t 4g	All versions
Cisco Catalyst C9300l 48t 4x	All versions
Cisco Catalyst C9404r	All versions
Cisco Catalyst C9407r	All versions
Cisco Catalyst C9410r	All versions
Cisco Catalyst C9500 12q	All versions
Cisco Catalyst C9500 16x	All versions
Cisco Catalyst C9500 24q	All versions
Cisco Catalyst C9500 24y4c	All versions
Cisco Catalyst C9500 32c	All versions
Cisco Catalyst C9500 32qc	All versions
Cisco Catalyst C9500 40x	All versions
Cisco Catalyst C9500 48y4c	All versions
Cisco Csr 1000v	All versions
Cisco Ws C3650 12x48uq	All versions
Cisco Ws C3650 12x48ur	All versions
Cisco Ws C3650 12x48uz	All versions
Cisco Ws C3650 24pd	All versions
Cisco Ws C3650 24pdm	All versions
Cisco Ws C3650 24ps	All versions
Cisco Ws C3650 24td	All versions
Cisco Ws C3650 24ts	All versions
Cisco Ws C3650 48fd	All versions
Cisco Ws C3650 48fq	All versions
Cisco Ws C3650 48fqm	All versions
Cisco Ws C3650 48fs	All versions
Cisco Ws C3650 48pd	All versions
Cisco Ws C3650 48pq	All versions
Cisco Ws C3650 48ps	All versions
Cisco Ws C3650 48td	All versions
Cisco Ws C3650 48tq	All versions
Cisco Ws C3650 48ts	All versions
Cisco Ws C3650 8x24uq	All versions
Cisco Ws C3850	All versions
Cisco Ws C3850 12s	All versions
Cisco Ws C3850 12x48u	All versions
Cisco Ws C3850 12xs	All versions
Cisco Ws C3850 24p	All versions
Cisco Ws C3850 24s	All versions
Cisco Ws C3850 24t	All versions
Cisco Ws C3850 24u	All versions
Cisco Ws C3850 24xs	All versions
Cisco Ws C3850 24xu	All versions
Cisco Ws C3850 48f	All versions
Cisco Ws C3850 48p	All versions
Cisco Ws C3850 48t	All versions
Cisco Ws C3850 48u	All versions
Cisco Ws C3850 48xs	All versions

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-732

Incorrect Permission Assignment for Critical Resource

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

References (2)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unauth-file-access-eBTWkKVW

Source: psirt@cisco.com

Vendor Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unauth-file-access-eBTWkKVW

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.