CVE-2021-35973

Public Exploit

Description

NETGEAR WAC104 devices before 1.0.4.15 are affected by an authentication bypass vulnerability in /usr/sbin/mini_httpd, allowing an unauthenticated attacker to invoke any action by adding the &currentsetting.htm substring to the HTTP query, a related issue to CVE-2020-27866. This directly allows the attacker to change the web UI password, and eventually to enable debug mode (telnetd) and gain a shell on the device as the admin limited-user account (however, escalation to root is simple because of weak permissions on the /etc/ directory).

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.45% Top 25%
Vendor Advisory netgear.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gynvael.coldwind.pl/?lang=en&id=736 third party advisory exploit
https://kb.netgear.com/000063785/Security-Advisory-for-Authentication-Bypass-on-WAC104-PSV-2021-0075 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-35973?
CVE-2021-35973 has been scored as a critical severity vulnerability.
How to fix CVE-2021-35973?
To fix CVE-2021-35973, 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-2021-35973 being actively exploited in the wild?
It is possible that CVE-2021-35973 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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