Published:2016/11/01  Last Updated:2016/11/01

JVN#27260483
mobiGate App fails to verify SSL server certificates

Overview

mobiGate App fails to verify SSL server certificates.

Products Affected

  • mobiGate App for Android version 2.2.1.2 and earlier
  • mobiGate App for iOS version 2.2.4.1 and earlier

Description

mobiGate App provided by Nihon Unisys, Ltd. fails to verify SSL server certificates.

Impact

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

Solution

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

Vendor Status

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)
CVSS v2 AV:N/AC:H/Au:N/C:P/I:P/A:N
Base Score: 4.0
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Comment

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

Credit

Gaku Taniguchi of RiskFinder,inc. reported this vulnerability to Nihon Unisys, Ltd., and Nihon Unisys, Ltd. reported this vulnerability to IPA to notify users of its solution through JVN. JPCERT/CC and Nihon Unisys, Ltd. coordinated under the Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2016-7805
JVN iPedia JVNDB-2016-000213