CVE-2022-0650

2023-03-2819:15:09

CWE-121

CWE-787

[email protected]

web.nvd.nist.gov

cve-2022-0650

tp-link

tl-wr940n

vulnerability

arbitrary code execution

authentication required

httpd service

stack-based buffer overflow

zdi-can-13993

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

20.2%

JSON

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of 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-13993.

Affected configurations

Vulners

NVD

Node

tp-linktl-wr940nRange≤3.20.1

CPENameOperatorVersion
tp-link:tl-wr940n_firmwaretp-link tl-wr940n firmwarelt211111

CPE	Name	Operator	Version
tp-link:tl-wr940n_firmware	tp-link tl-wr940n firmware	lt	211111

CNA Affected

[
  {
    "vendor": "TP-Link",
    "product": "TL-WR940N",
    "versions": [
      {
        "version": "3.20.1 Build 200316 Rel.34392n (5553)",
        "status": "affected"
      }
    ]
  }
]