CVE-2020-10884: tp-link ac1750_firmware Use of Hard-coded Cryptographic Key

Vulnerability summary

CVE-2020-10884 is a high (CVSS 8.8) Use of Hard-coded Cryptographic Key vulnerability in tp-link ac1750_firmware. EPSS estimates a 21.91% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 25-03-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

This vulnerability allows network-adjacent attackers 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. This issue results from the use of hard-coded encryption key. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9652.

• CWE-321Use of Hard-coded Cryptographic KeyThe product uses a hard-coded, unchangeable cryptographic key.
• CWE-798Use of Hard-coded CredentialsThe product contains hard-coded credentials, such as a password or cryptographic key.