Published:2020/01/31  Last Updated:2020/01/31

JVN#00014057
AWMS Mobile App vulnerable to improper server certificate verification

Overview

AWMS Mobile App is vulnerable to improper server certificate verification.

Products Affected

  • AWMS Mobile App for iOS 2.0.0 to 2.0.8
  • AWMS Mobile App for Android 2.0.0 to 2.0.5

Description

AWMS Mobile App is 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 Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Fuji Xerox Co.,Ltd. Vulnerable 2020/01/31 Fuji Xerox Co.,Ltd. website

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

Dai Nakamura of Cryptography Laboratory, Department of Information and Communication Engineering, Tokyo Denki University 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-2020-5526
JVN iPedia JVNDB-2020-000008