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ZdiCVE-2020-10888

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

CVE-2020-10888

2020-03-2521:15:12

CWE-287

zdi

web.nvd.nist.gov

cve-2020-10888

tp-link

archer a7

firmware

ssh

port forwarding

authentication bypass

zdi-can-9664

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

AI Score

9.7

Confidence

High

EPSS

0.027

Percentile

90.4%

JSON

This vulnerability allows remote attackers to bypass authentication 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 SSH port forwarding requests during initial setup. The issue results from the lack of proper authentication prior to establishing SSH port forwarding rules. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the WAN interface. Was ZDI-CAN-9664.

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-20-340/

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

AI Score

9.7

Confidence

High

EPSS

0.027

Percentile

90.4%

JSON

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