CVE-2021-27252

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the vendor_specific DHCP opcode. 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-12216.

Summary:

Reference Links(if available):

https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders

https://www.zerodayinitiative.com/advisories/ZDI-21-248/

CVSS Score (if available)

v2: / HIGH

v3: /

Links to Exploits(if available)

Tags: CVE, CVE-2021-27252, MISC, patch, vulnerability

CVE-2021-27252

Summary:

Reference Links(if available):

CVSS Score (if available)

Links to Exploits(if available)

CISA: CISA Adds One Known Exploited Vulnerability to Catalog

CISA: CISA Releases Six Industrial Control Systems Advisories

CISA: CISA Releases Eight Industrial Control Systems Advisories

CISA: CISA and Partners Release Joint Guidance on PRC-Affiliated Threat Actor Compromising Networks of Global Telecommunications Providers

CISA: CISA Adds Three Known Exploited Vulnerabilities to Catalog

Summary:

Reference Links(if available):

CVSS Score (if available)

Links to Exploits(if available)

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CISA: CISA Adds One Known Exploited Vulnerability to Catalog

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