Published:2024/05/21  Last Updated:2024/05/21

JVN#29471697
Android App "TP-Link Tether" and "TP-Link Tapo" vulnerable to improper server certificate verification

Overview

Android App "TP-Link Tether" and "TP-Link Tapo" provided by TP-LINK GLOBAL INC. are vulnerable to improper server certificate verification.

Products Affected

  • TP-Link Tether versions prior to 4.5.13
  • TP-Link Tapo versions prior to 3.3.6

Description

Android App "TP-Link Tether" and "TP-Link Tapo" provided by TP-LINK GLOBAL INC. are vulnerable to improper server certificate verification (CWE-295).

Impact

A man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.

Solution

Update the application
Update the application to the latest version according to the information provided by the developer.

Vendor Status

Vendor Link
TP-LINK GLOBAL INC. TP-Link Tether
TP-Link Tapo

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score: 4.8
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)

Comment

This analysis assumes a man-in-the-middle attack being conducted by an attacker that places a malicious wireless LAN access point.

Credit

Kenichiro Ito of TDU Cryptography Lab. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2024-31340
JVN iPedia JVNDB-2024-000046