Published:2019/11/07  Last Updated:2019/11/07

JVN#41566067
Rakuma App vulnerable to authentication information disclosure

Overview

Rakuma App contains an authentication information disclosure vulnerability.

Products Affected

  • Rakuma App for Android version 7.15.0 and earlier
  • Rakuma App for iOS version 7.16.4 and earlier

Description

Rakuma App provided by Rakuten, Inc. contains an authentication information disclosure vulnerability (CWE-200).

Impact

If a malicious application created by the third party with a purpose to attack a Rakuma user is installed in the Rakuma user's mobile device, it may obtain Rakuma user's authentication information.

Solution

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

Vendor Status

Vendor Status Last Update Vendor Notes
Rakuten, Inc. Vulnerable 2019/11/07

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score: 4.7
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:N/A:N
Base Score: 2.6
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)

Credit

Gaku Mochizuki of Mitsui Bussan Secure Directions, Inc. 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-2019-6024
JVN iPedia JVNDB-2019-000068