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1. #Netgear switch discovery tool for mac v1.0.102 update
2. #Netgear switch discovery tool for mac v1.0.102 code
3. #Netgear switch discovery tool for mac v1.0.102 password
4. #Netgear switch discovery tool for mac v1.0.102 plus

The following commands were used to restore the device to factory defaults (0x400) without knowing the administration password: 001a00000400000101ffff0000 When no other random number has been requested from last reboot it seems to be storeing an empty value and the system will accept as valid an empty authentication hash. The problem comes when the authenticated request is sent while the first step is skipped.

#Netgear switch discovery tool for mac v1.0.102 password

The NSDP authentication process involves two steps: asking for a random token (0x17 command) and using it to generate a password hash that will be used to send authenticated requests (0x1a command). ImpactĪ remote unauthenticated attacker can send specially crafted authentication packages to execute any management actions in the device, including wiping the configuration by executing a factory restoration. The implementantion of this protocol in the devices analised does not properly handle authentication packages and, under certain circunstances, can be abused to bypass authentication method.

#Netgear switch discovery tool for mac v1.0.102 plus

It is known as Netgear Switch Management Protocol (NSDP) and it is used by “Netgear Switch Discovery Tool” and “ProSafe Plus Configuration Utility” software. Netgear developed a network protocol to be a discovery method with the ability to manage the switch configuration. NSDP Authentication Bypass (CVE-2020-35231) Vendor: Netgear Inc.

#Netgear switch discovery tool for mac v1.0.102 update

Update device firmware to version 2.6.0.43 or later. curl -X POST -data-raw 'submitId=debug&debugCmd=sys+dump&submitEnd=' This will allow users execute system commands. The problem was located in the login.html webpage, that has to be publicly available to perform login requests but does not implement any restriction for executing debug actions. It was found that every section of the web could be used as a valid endpoint to submit POST requests being the action defined by the submitId argument.

#Netgear switch discovery tool for mac v1.0.102 code

Impactĭue to the ability of execute system commands through the “debug” web sections, a successful exploitation of this vulnerability can lead to remote code execution on the affected device. The switch internal management web application in firmware versions prior to 2.6.0.43 failed to correctly implement access controls in one of its endpoints, allowing unauthenticated attackers to bypass authentication and execute actions with administrator privileges. Systems Affected: Netgear ProSAFE Plus JGS516PE / GS116Ev2Īuthor: Manuel Ginés Rodríguez - manuel.ginesnccgroupcom Technical Advisories: Unauthenticated Remote Code Execution (CVE-2020-26919) Vendor: Netgear Inc. Furthermore, we were informed that, due to hardware limitations, it is not possible to implement many of the standard encryption protocols, such as those needed to implement HTTPS. Netgear reported that most of the vulnerabilities affecting the NSDP protocol were known due to end-of-life years ago and it is still enabled for legacy reasons, for customers who preferred to use Prosafe Plus. Ineffective Cross Site Request Forgery Protections (CVE-2020-35223).Multiple Write Commands Buffer Overflow (CVE-2020-35225).Multiple Integer Overflow Instances (CVE-2020-35230).TFTP Unexpected Behaviours (CVE-2020-35233).Unauthenticated Access to Switch Configuration Parameters (CVE-2020-35222).Unauthenticated Write Access to DHCP Configuration (CVE-2020-35226).Buffer Overflow in IP Source Params (CVE-2020-35227).Stored XSS in Language Settings (CVE-2020-35228).Authentication Token Reu se (CVE-2020-35229).

TFTP Ineffective Firmware Checks (CVE-2020-35232).Unauthenticated Firmware Update Mechanism (CVE-2020-35220).NSDP Authentication Bypass (CVE-2020-35231).Unauthenticated Remote Code Execution (CVE-2020-26919).The following vulnerabilities were the most relevant identified during the internal research: The most critical vulnerability could allow unauthenticated users to gain arbitrary code execution. Multiple vulnerabilities were found in Netgear ProSafe Plus JGS516PE switches that may pose a serious risk to their users.