CVE-2021-1461

Cisco SD-WAN Software Signature Verification Bypass Vulnerability

Description

A vulnerability in the Image Signature Verification feature of Cisco SD-WAN Software could allow an authenticated, remote attacker with Administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.Cisco has released software updates that address the vulnerability described in this advisory. There are no workarounds that address this vulnerability.

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Cisco Cisco Catalyst SD-WAN Manager
Affected: Cisco Cisco SD-WAN vEdge Router
Published at:
Updated at:

References

Link Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-sigverbypass-gPYXd6Mk
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-webui-gQLSFyPM

Frequently Asked Questions

What is the severity of CVE-2021-1461?
CVE-2021-1461 has been scored as a medium severity vulnerability.
How to fix CVE-2021-1461?
To fix CVE-2021-1461, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-1461 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1461 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1461?
CVE-2021-1461 affects Cisco Cisco Catalyst SD-WAN Manager, Cisco Cisco SD-WAN vEdge Router.
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