CVE-2021-34947

2024-05-0723:15:07

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-34947

netgear r7800

remote code execution

vulnerability

soap block table

root context

zdi-can-13055

authentication required

8.8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

21.4%

JSON

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.

Affected configurations

Vulners

Node

netgearr7800Range≤1.0.2.82

CNA Affected

[
  {
    "vendor": "NETGEAR",
    "product": "R7800",
    "versions": [
      {
        "version": "1.0.2.82",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]