CVE-2021-34947

NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of the soap_block_table file. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13055.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector : AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129
https://www.zerodayinitiative.com/advisories/ZDI-21-1116/

Configurations

No configuration.

History

No history.

Information

Published : 2024-05-07 23:15

Updated : 2024-05-08 13:15

NVD link : CVE-2021-34947

Mitre link : CVE-2021-34947

CVE.ORG link : CVE-2021-34947

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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