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ZdiCVE-2020-10881

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

CVE-2020-10881

2020-03-2521:15:11

CWE-787

CWE-121

zdi

web.nvd.nist.gov

cve-2020-10881

tp-link

archer a7 firmware

remote code execution

vulnerability

nvd

zdi-can-9660

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.016

Percentile

87.5%

JSON

This vulnerability allows remote 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 handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9660.

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"
      }
    ]
  }
]

References

www.zerodayinitiative.com/advisories/ZDI-20-333/

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.016

Percentile

87.5%

JSON

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