Headline

CVE-2020-10882: ZDI-20-334

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.

4 years ago

CVE

Open in Source

#vulnerability #mac #rce #perl #auth

March 25th, 2020

(Pwn2Own) TP-Link Archer A7 tdpServer Command Injection Remote Code Execution Vulnerability****ZDI-20-334
ZDI-CAN-9650

CVE ID

CVE-2020-10882

CVSS SCORE

8.8, (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

AFFECTED VENDORS

TP-Link

AFFECTED PRODUCTS

Archer A7

VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 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.

ADDITIONAL DETAILS

Fixed in version A7(US)_V5_200220

DISCLOSURE TIMELINE