CVE-2020-27872 – NETGEAR R7450 Password Recovery External Control of Critical State Data Authentication Bypass Vulnerability
https://notcve.org/view.php?id=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. 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. • https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers https://www.zerodayinitiative.com/advisories/ZDI-21-071 • CWE-642: External Control of Critical State Data CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2020-27873 – NETGEAR R7450 SOAP API RecoverAdminPassword Improper Access Control Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2020-27873
This vulnerability allows network-adjacent attackers to disclose sensitive information 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 SOAP API endpoint, which listens on TCP port 80 by default. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. • https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers https://www.zerodayinitiative.com/advisories/ZDI-21-072 • CWE-284: Improper Access Control CWE-863: Incorrect Authorization •
CVE-2020-35787
https://notcve.org/view.php?id=CVE-2020-35787
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6200 before 1.1.00.36, D7000 before 1.0.1.70, EX6200v2 before 1.0.1.78, EX7000 before 1.0.1.78, EX8000 before 1.0.1.186, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.42, R6050 before 1.0.1.18, R6080 before 1.0.0.42, R6120 before 1.0.0.46, R6220 before 1.1.0.80, R6260 before 1.1.0.64, R6300v2 before 1.0.4.34, R6700 before 1.0.2.6, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900 before 1.0.2.4, R6900P before 1.3.1.64, R6900v2 before 1.2.0.36, R7000 before 1.0.9.42, R7000P before 1.3.1.64, R7800 before 1.0.2.60, R8900 before 1.0.4.12, R9000 before 1.0.4.12, and XR500 before 2.3.2.40. Determinados dispositivos NETGEAR están afectados por un desbordamiento del búfer por parte de un usuario autenticado. Esto afecta a D3600 versiones anteriores a 1.0.0.76, D6000 versiones anteriores a 1.0.0.76, D6200 versiones anteriores a 1.1.00.36, D7000 versiones anteriores a 1.0.1.70, EX6200v2 versiones anteriores a 1.0.1.78, EX7000 versiones anteriores a 1.0.1.78, EX8000 versiones anteriores a 1.0.1.186, JR6150 versiones anteriores a 1.0.1.18, PR2000 versiones anteriores a 1.0.0.28, R6020 versiones anteriores a 1.0.0.42, R6050 versiones anteriores a 1.0.1.18, R6080 versiones anteriores a 1.0.0.42, R6120 versiones anteriores a 1.0.0.46, R6220 versiones anteriores a 1.1.0.80, R6260 versiones anteriores a 1.1.0.64, R6300v2 versiones anteriores a 1.0.4.34, R6700 versiones anteriores a 1.0.2.6, R6700v2 versiones anteriores a 1.2.0.36, R6800 versiones anteriores a 1.2.0.36, R6900 versiones anteriores a 1.0.2.4, R6900P versiones anteriores a 1.3.1.64, R6900v2 versiones anteriores a 1.2.0.36, R7000 versiones anteriores a 1.0.9.42, R7000P versiones anteriores a 1.3.1.64, R7800 versiones anteriores a 1.0. 2.60, R8900 versiones anteriores a 1.0.4.12, R9000 versiones anteriores a 1.0.4.12 y XR500 versiones anteriores a 2.3.2.40. • https://kb.netgear.com/000062710/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Range-Extenders-PSV-2018-0379 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2020-27867 – NETGEAR Multiple Routers mini_httpd Command Injection Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2020-27867
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. • https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers https://www.zerodayinitiative.com/advisories/ZDI-20-1423 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') •
CVE-2020-27866 – NETGEAR Multiple Routers mini_httpd Authentication Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2020-27866
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 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 incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. • https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers https://www.zerodayinitiative.com/advisories/ZDI-20-1451 • CWE-287: Improper Authentication CWE-288: Authentication Bypass Using an Alternate Path or Channel •