Vulnerability · Published Jan 13, 2022 · Assigned by zdi

CVE-2021-34977

High 8.8

In plain English

A high-severity authentication bypass in R7000 from NETGEAR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)1.2%top 32.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7000 1.0.11.116_10.2.100 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of SOAP requests. The issue results from the lack of proper authentication verification before performing a password reset. An attacker can leverage this vulnerability to reset the admin password. Was ZDI-CAN-13483.

Affected products (as reported)

Vendor	Product	Versions
NETGEAR	R7000	1.0.11.116_10.2.100

Weakness: CWE-288 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1239/ x_refsource_MISC
https://kb.netgear.com/000064046/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-and-DSL-Modem-Routers-PSV-2021-0134 x_refsource_MISC