This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the rc_service parameter provided to apply_save.cgi. The issue results from the lack of proper validation of 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. Was ZDI-CAN-12355.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published: 2021-03-05T20:00:25

Updated: 2024-08-03T20:48:16.076Z

Reserved: 2021-02-16T00:00:00

Link: CVE-2021-27256

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-03-05T20:15:12.550

Modified: 2021-03-16T19:35:09.947

Link: CVE-2021-27256

cve-icon Redhat

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