Description
A hard-coded cryptographic key vulnerability exists in the user-configuration backup mechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and initialization vector are embedded in the firmware configuration-management component. An attacker who obtains an affected configuration backup file may extract the cryptographic material from the firmware and use it to decrypt the backup. Successful exploitation may disclose sensitive configuration information contained in a backup file, including administrator passwords and Wi-Fi credentials.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
TP-Link Systems Inc. RE305 v3
Default version status: unaffected
0 to < 1.1.8 Build 20260921 Rel. 42853affected
TP-Link Systems Inc. Archer C7 v5
Default version status: unaffected
0 to < 1.3.1 Build 20260821 Rel. 41256affected
References
- https://www.tp-link.com/us/support/download/re305/v3/#Firmware ↗
- https://www.tp-link.com/en/support/download/re305/v3/#Firmware ↗
- https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware ↗
- https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware ↗
- https://www.tp-link.com/us/support/faq/5362/ ↗