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cveZdiCVE-2022-24355
HistoryFeb 18, 2022 - 8:15 p.m.

CVE-2022-24355

2022-02-1820:15:18
CWE-787
CWE-121
zdi
web.nvd.nist.gov
76
cve-2022-24355
tp-link
tl-wr940n
router vulnerability
code execution
file name extension
zdi-can-13910
nvd

CVSS2

8.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.1%

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 not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. 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-13910.

Affected configurations

Nvd
Vulners
Node
tp-linktl-wr940n_firmwareRange<211111
AND
tp-linktl-wr940nMatch-
VendorProductVersionCPE
tp-linktl-wr940n_firmware*cpe:2.3:o:tp-link:tl-wr940n_firmware:*:*:*:*:*:*:*:*
tp-linktl-wr940n-cpe:2.3:h:tp-link:tl-wr940n:-:*:*:*:*:*:*:*

CNA Affected

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

CVSS2

8.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.1%

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