VulnerabilityAnalyzed

CVE-2022-40620

An attacker (suitably positioned on the network) could intercept the update request and deliver a malicious update package in order to gain arbitrary code execution on affected devices.

HIGH 7.7EPSS 0.29%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly validate TLS certificates when downloading update packages through its auto-update mechanism. An attacker (suitably positioned on the network) could intercept the update request and deliver a malicious update package in order to gain arbitrary code execution on affected devices. This affects R6230 before 1.1.0.112, R6260 before 1.1.0.88, R7000 before 1.0.11.134, R8900 before 1.0.5.42, R9000 before 1.0.5.42, and XR300 before 1.0.3.72 and Orbi RBR20 before 2.7.2.26, RBR50 before 2.7.4.26, RBS20 before 2.7.2.26, and RBS50 before 2.7.4.26.

CVSS 3.1: 7.7 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS: 0.29% probability · 21th percentile
CISA KEV: Not listed
Weakness: CWE-295
Affected: netgear/rbr20 firmware · netgear/r6230 firmware · netgear/r6260 firmware · netgear/r7000 firmware · netgear/r8900 firmware · netgear/r9000 firmware · netgear/rax120 firmware · netgear/rax120v2 firmware · netgear/xr300 firmware · netgear/rbs20 firmware
Source: cve@mitre.org

References

https://kb.netgear.com/000065132/Security-Advisory-for-Vulnerabilities-in-FunJSQ-on-Some-Routers-and-Orbi-WiFi-Systems-PSV-2022-0117Vendor Advisory
https://www.onekey.com/resource/security-advisory-netgear-routers-funjsq-vulnerabilitiesExploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.