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    CERT-IN Reports Critical Security Flaw In TP-Link Routers

    The Indian Computer Emergency Response Team (CERT-IN) has reported a severe security vulnerability in TP-Link routers. The vulnerability could allow a remote attacker to “execute arbitrary code with elevated privileges”, says the cybersecurity agency. First reported on 28th May, the vulnerability exists in versions of the TP-Link Archer routers prior to C5400X9(EU)V1_1.1.7 Build 20240510 and has been granted a severity rating of ‘high.’

    The vulnerability exists due to improper neutralization of special elements used in a binary called “rftest.” This binary exposes a network service, which are applications that connect users to other devices in a network, that is vulnerable to unauthenticated command injection.

    A binary is an executable file that contains machine-readable instructions for the computer to perform specific tasks. In this case, the “rftest” binary exposes a network service that is vulnerable to unauthenticated command injection.

    The term “improper neutralization of special elements” refers to the failure of the “rftest” binary to properly handle and sanitize input data. Special elements, such as certain characters or sequences, can be interpreted as commands by the system. If these special elements are not properly neutralized, an attacker can exploit this vulnerability by crafting malicious input containing these special elements, leading to command injection and the execution of arbitrary code.

    Command injection is a type of attack where an attacker can inject malicious code or commands into an application or system, causing it to execute unintended actions. In the case of the TP-Link router, the vulnerability allows an attacker to inject arbitrary commands into the “rftest” binary without any authentication, granting them elevated privileges on the compromised system.

    Elevated privileges grant a user a higher level of access and control over the system, in this case potentially enabling them to perform various malicious actions, such as installing malware, stealing data, or disrupting the normal operation of the router. This vulnerability could potentially allow a remote attacker to execute arbitrary code with elevated privileges on a compromised system, posing a severe risk to the users of the affected router.

    The solution is to apply the appropriate patches released by the company.

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    The post CERT-IN Reports Critical Security Flaw In TP-Link Routers appeared first on MEDIANAMA.

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