CVE-2021-34982

2024-05-0723:15:13

CWE-121

[email protected]

web.nvd.nist.gov

netgear

routers

buffer overflow

cve-2021-34982

httpd

remote code execution

vulnerability

network-adjacent attackers

tcp port 80

fixed-length stack-based buffer

zdi-can-13709

nvd

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

0.0005 Low

EPSS

Percentile

16.4%

JSON

NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the httpd service, which listens on TCP port 80 by default. When parsing the strings file, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

. Was ZDI-CAN-13709.

Affected configurations

Vulners

Node

netgearnetgear_routerRange≤1.0.11.116

CNA Affected

[
  {
    "vendor": "NETGEAR",
    "product": "Multiple Routers",
    "versions": [
      {
        "version": "V1.0.11.116_10.2.100",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]