CVE-2021-1491: Cisco SD-WAN vManage Software Information Disclosure Vulnerability

Published Nov 15, 2024

Updated

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to read arbitrary files on the underlying file system of the device. This vulnerability is due to insufficient file scope limiting. An attacker could exploit this vulnerability by creating a specific file reference on the file system and then accessing it through the web-based management interface. A successful exploit could allow the attacker to read arbitrary files from the file system of the underlying operating system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Affected Software

64 affected components

Cisco SD-WAN vManage Software

Cisco Catalyst SD-WAN Manager=17.2.4

Cisco Catalyst SD-WAN Manager=17.2.5

Cisco Catalyst SD-WAN Manager=17.2.6

Cisco Catalyst SD-WAN Manager=17.2.7

Cisco Catalyst SD-WAN Manager=17.2.8

Cisco Catalyst SD-WAN Manager=17.2.9

Cisco Catalyst SD-WAN Manager=17.2.10

Cisco Catalyst SD-WAN Manager=18.2.0

Cisco Catalyst SD-WAN Manager=18.3.0

Cisco Catalyst SD-WAN Manager=18.3.1

Cisco Catalyst SD-WAN Manager=18.3.1.1

Cisco Catalyst SD-WAN Manager=18.3.3

Cisco Catalyst SD-WAN Manager=18.3.3.1

Cisco Catalyst SD-WAN Manager=18.3.4

Cisco Catalyst SD-WAN Manager=18.3.5

Cisco Catalyst SD-WAN Manager=18.3.6

Cisco Catalyst SD-WAN Manager=18.3.6.1

Cisco Catalyst SD-WAN Manager=18.3.7

Cisco Catalyst SD-WAN Manager=18.3.8

Cisco Catalyst SD-WAN Manager=18.4.0

Cisco Catalyst SD-WAN Manager=18.4.0.1

Cisco Catalyst SD-WAN Manager=18.4.1

Cisco Catalyst SD-WAN Manager=18.4.3

Cisco Catalyst SD-WAN Manager=18.4.4

Cisco Catalyst SD-WAN Manager=18.4.5

Cisco Catalyst SD-WAN Manager=18.4.6

Cisco Catalyst SD-WAN Manager=18.4.302

Cisco Catalyst SD-WAN Manager=18.4.303

Cisco Catalyst SD-WAN Manager=18.4.501_es

Cisco Catalyst SD-WAN Manager=19.0.0

Cisco Catalyst SD-WAN Manager=19.0.1a

Cisco Catalyst SD-WAN Manager=19.1.0

Cisco Catalyst SD-WAN Manager=19.2.0

Cisco Catalyst SD-WAN Manager=19.2.1

Cisco Catalyst SD-WAN Manager=19.2.2

Cisco Catalyst SD-WAN Manager=19.2.3

Cisco Catalyst SD-WAN Manager=19.2.4

Cisco Catalyst SD-WAN Manager=19.2.4.0.1

Cisco Catalyst SD-WAN Manager=19.2.31

Cisco Catalyst SD-WAN Manager=19.2.32

Cisco Catalyst SD-WAN Manager=19.2.097

Cisco Catalyst SD-WAN Manager=19.2.098

Cisco Catalyst SD-WAN Manager=19.2.099

Cisco Catalyst SD-WAN Manager=19.2.929

Cisco Catalyst SD-WAN Manager=19.3.0

Cisco Catalyst SD-WAN Manager=20.1.1

Cisco Catalyst SD-WAN Manager=20.1.1.1

Cisco Catalyst SD-WAN Manager=20.1.2

Cisco Catalyst SD-WAN Manager=20.1.2_937

Cisco Catalyst SD-WAN Manager=20.1.12

Cisco Catalyst SD-WAN Manager=20.3.1

Cisco Catalyst SD-WAN Manager=20.3.2

Cisco Catalyst SD-WAN Manager=20.3.2.1

Cisco Catalyst SD-WAN Manager=20.3.2.1_927

Cisco Catalyst SD-WAN Manager=20.3.2.1_930

Cisco Catalyst SD-WAN Manager=20.3.2_925

Cisco Catalyst SD-WAN Manager=20.3.2_928

Cisco Catalyst SD-WAN Manager=20.3.2_929

Cisco Catalyst SD-WAN Manager=20.3.2_937

Cisco Catalyst SD-WAN Manager=20.3.3

Cisco Catalyst SD-WAN Manager=20.4.1

Cisco Catalyst SD-WAN Manager=20.4.1.0.1

Cisco Catalyst SD-WAN Manager=20.4.1.1

Event History

Nov 15, 2024

CVE Published

via MITRE·04:25 PM

Data Sourced

via MITRE·04:25 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·05:15 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2021-1491?

CVE-2021-1491 is rated as a high-severity vulnerability due to its potential for unauthorized file access.

How do I fix CVE-2021-1491?

To mitigate CVE-2021-1491, ensure that your Cisco SD-WAN vManage Software is updated to the latest patched version provided by Cisco.

Who is affected by CVE-2021-1491?

CVE-2021-1491 affects users of Cisco SD-WAN vManage Software who have an authenticated remote access capability.

What type of attack does CVE-2021-1491 enable?

CVE-2021-1491 enables an authenticated, remote attacker to read arbitrary files on the device's underlying file system.

What is the cause of CVE-2021-1491?

The cause of CVE-2021-1491 is insufficient file scope limiting in the web-based management interface of the Cisco SD-WAN vManage Software.