JVN#06212291
Android OS Contacts app fails to restrict access permissions
Overview
The Contacts app within the Android OS contains a vulnerability where it fails to restrict access permissions.
Products Affected
- Android OS versions prior to 4.1.2_r1
Description
The Contacts app within the Android OS receives requests for outgoing calls through Intents and calls the Dialer app. The Contacts app contains a vulnerability where it fails to restrict access permissions, since it receives and processes Intents from apps without CALL_PHONE permissions.
Impact
When a user uses a malicious Android app, it may make an unintended outgoing call.
Solution
Apply an Update
Apply the update according to the information provided by the developer or distributor.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Cybozu, Inc. | Not Vulnerable | 2016/07/22 | |
| Disney Mobile on SoftBank | Vulnerable, investigating | 2016/07/22 | |
| KDDI CORPORATION | Vulnerable, investigating | 2016/07/25 | |
| NTT-CERT | Not Vulnerable | 2016/07/22 | |
| RICOH COMPANY, LTD. | Not Vulnerable | 2021/02/18 | |
| Sharp Corporation | Not Vulnerable | 2016/07/22 | |
| SoftBank | Vulnerable, investigating | 2016/07/22 | |
| Y!mobile | Vulnerable, investigating | 2016/07/22 |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| 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) |
| 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
Shifeng, Zhang of Symantec reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
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| JVN iPedia |
JVNDB-2016-000128 |
Update History
- 2016/07/22
- KDDI CORPORATION update status
- 2016/07/25
- KDDI CORPORATION update status
- 2021/02/18
- RICOH COMPANY, LTD. update status