SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-27872

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers.

HIGH 8.8EPSS 0.90%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from improper state tracking in the password recovery process. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11365.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.90% probability · 58th percentile
CISA KEV
Not listed
Weakness
CWE-642, CWE-668
Affected
netgear/ac2100 firmware · netgear/ac2400 firmware · netgear/ac2600 firmware · netgear/r6700 firmware · netgear/r6800 firmware · netgear/r6900 firmware · netgear/r7200 firmware · netgear/r7350 firmware · netgear/r7400 firmware · netgear/r7450 firmware · netgear/r6220 firmware · netgear/r6230 firmware · netgear/r6260 firmware · netgear/r6330 firmware · netgear/r6350 firmware · netgear/r6850 firmware · netgear/r6120 firmware · netgear/r6020 firmware · netgear/r6080 firmware
Source
zdi-disclosures@trendmicro.com

References

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