CVE-2021-32951 Advantech WebAccess/NMS Improper Authentication

What is CVE-2021-32951?

CVE-2021-32951 is a medium-severity authentication bypass vulnerability in Advantech WebAccess/NMS, published on 27 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.

Weakness: CWE-287

Which versions are affected by CVE-2021-32951?

It affects 1 product.

Products include Advantech Webaccess\/Nms.

How do I fix CVE-2021-32951?

No fix has been published for CVE-2021-32951 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-32951 being exploited?

There is no known exploitation of CVE-2021-32951 in the wild and no public exploit code.

Other vulnerabilities in Advantech WebAccess/NMS

• CVE-2020-10621 File upload in WebAccess/NMS Critical 9.8
• CVE-2020-10625 Auth bypass in WebAccess/NMS Critical 9.8
• CVE-2020-10631 Path traversal in WebAccess/NMS Critical 9.8
• CVE-2020-10619 Path traversal in WebAccess/NMS Critical 9.1
• CVE-2020-10603 Command injection in WebAccess/NMS High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-9rgm-96q6-gc9m.