CVE-2020-10916

This vulnerability allows network-adjacent attackers to escalate privileges on affected installations of TP-Link TL-WA855RE Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361] Wi-Fi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the first-time setup process. The issue results from the lack of proper validation on first-time setup requests. An attacker can leverage this vulnerability to reset the password for the Admin account and execute code in the context of the device. Was ZDI-CAN-10003.

• CVE ID
• CVE-2020-10916

• Assigner
• zdi-disclosures@trendmicro.com

• Vulnerability Status
• Analyzed

• Published Version
• 2020-05-07T23:15:11

• Last Modified Date
• 2020-05-14T15:48:34

• Version
• 2.0

• Vector String
• AV:A/AC:L/Au:S/C:P/I:P/A:P

• Access Vector
• ADJACENT_NETWORK

• Access Compatibility
• LOW

• Authentication
• SINGLE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• PARTIAL

• Availability Impact
• PARTIAL

• Base Score
• 5.2

• Severity
• MEDIUM

• Exploitability Score
• 5.1

• Impact Score
• 6.4

• Version
• 3.1

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

• Attack Vector
• ADJACENT_NETWORK

• Attack Compatibility
• LOW

• Privileges Required
• LOW

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• HIGH

• Availability Impact
• HIGH

• Base Score
• 8

• Base Severity
• HIGH

• Exploitability Score
• 2.1

• Impact Score
• 5.9