Auth bypass in NETGEAR Wnr1000
CVE-2019-20489
An issue was discovered on NETGEAR WNR1000V4 1.1.0.54 devices. The web management interface (setup.cgi) has an authentication bypass and other problems that ultimately allow an attacker to remotely compromise the device from a malicious webpage. The attacker sends an FW_remote.htm&todo=cfg_init request without a cookie, reads the Set-Cookie header in the 401 Unauthorized response, and then repeats the FW_remote.htm&todo=cfg_init request with the specified cookie.
Vulnerability class: Broken Authentication
EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Netgear Wnr1000 — versions 4
- Netgear Wnr1000_firmware — versions 1.1.0.54
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-20489?
- CVE-2019-20489 is a critical-severity vulnerability in NETGEAR Wnr1000, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-03-02.
- How severe is CVE-2019-20489?
- Critical severity. CVSS v3 base score is 9.8 out of 10.