JVN#55438786: Content Provider in CamiApp for Android fails to restrict access permissions

Overview

CamiApp for Android provided by KOKUYO S&T Co.,Ltd. contains an issue where access permissions are not restricted.

The Content Provider in CamiApp for Android provided by KOKUYO S&T Co.,Ltd. contains an issue where access permissions are not restricted.

If a user of the affected product uses another malicious Android application, information stored in the database may be obtained or altered.

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

Vendor	Link
KOKUYO S&T Co.,Ltd.	CamiApp - Android Apps on Google Play

Analyzed on 2014.04.14 (CVSS Base Metrics)

What is CVSS?

Measures	Severity			Description
Access Vector(AV)	Local (L)	Adjacent Network (A)	Network (N)	A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC)	High (H)	Medium (M)	Low (L)	Specialized access conditions exist.
Authentication(Au)	Multiple (M)	Single (S)	None (N)	Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C)	None (N)	Partial (P)	Complete (C)	There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I)	None (N)	Partial (P)	Complete (C)	Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A)	None (N)	Partial (P)	Complete (C)	There is no impact to the availability of the system.

Base Score:4.0

Hiroshi Kumagai reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.