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ZdiCVE-2020-10882

HistoryMar 25, 2020 - 9:15 p.m.

CVE-2020-10882

2020-03-2521:15:11

CWE-78

zdi

web.nvd.nist.gov

cve-2020-10882

tp-link

archer a7

firmware

vulnerability

arbitrary code execution

udp

root user

zdi-can-9650

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

57.2%

JSON

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tdpServer service, which listens on UDP port 20002 by default. When parsing the slave_mac parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9650.

Affected configurations

Nvd

Vulners

Node

tp-linkac1750_firmwareMatch190726

AND

tp-linkac1750Match-

VendorProductVersionCPE
tp-linkac1750_firmware190726cpe:2.3:o:tp-link:ac1750_firmware:190726:*:*:*:*:*:*:*
tp-linkac1750-cpe:2.3:h:tp-link:ac1750:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
tp-link	ac1750_firmware	190726	cpe:2.3:o:tp-link:ac1750_firmware:190726:::::::*
tp-link	ac1750	-	cpe:2.3:h:tp-link:ac1750:-:::::::*

CNA Affected

[
  {
    "product": "Archer A7",
    "vendor": "TP-Link",
    "versions": [
      {
        "status": "affected",
        "version": "Firmware Ver: 190726"
      }
    ]
  }
]