VDB-101129 · CVE-2016-4839 · BID 93035

Money Forward on Android WebView Crafted Application information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Money Forward on Android. It has been rated as problematic. The affected element is the function WebView. The manipulation as part of Crafted Application leads to information disclosure. This vulnerability is traded as CVE-2016-4839. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Money Forward on Android (Android App Software) (version unknown) and classified as problematic. This issue affects the function WebView. The manipulation as part of a Crafted Application leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

The Android Apps Money Forward (prior to v7.18.0), Money Forward for The Gunma Bank (prior to v1.2.0), Money Forward for SHIGA BANK (prior to v1.2.0), Money Forward for SHIZUOKA BANK (prior to v1.4.0), Money Forward for SBI Sumishin Net Bank (prior to v1.6.0), Money Forward for Tokai Tokyo Securities (prior to v1.4.0), Money Forward for THE TOHO BANK (prior to v1.3.0), Money Forward for YMFG (prior to v1.5.0) provided by Money Forward, Inc. and Money Forward for AppPass (prior to v7.18.3), Money Forward for au SMARTPASS (prior to v7.18.0), Money Forward for Chou Houdai (prior to v7.18.3) provided by SOURCENEXT CORPORATION do not properly implement the WebView class, which allows an attacker to disclose information stored on the device via a specially crafted application.

The bug was discovered 09/20/2016. The weakness was shared 05/12/2017 (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2016-4839 since 05/17/2016. An attack has to be approached locally. The successful exploitation requires a simple authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 234 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93035†). The entry VDB-101128 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/17/2016 🔍
09/20/2016 +126 days 🔍
09/20/2016 +0 days 🔍
05/12/2017 +234 days 🔍
05/12/2017 +0 days 🔍
05/13/2017 +1 days 🔍
12/23/2020 +1320 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Kenta Suefusa, Akinori Konishi, Tomonori Shiomi
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4839 (🔍)
GCVE (CVE): GCVE-0-2016-4839
GCVE (VulDB): GCVE-100-101129
SecurityFocus: 93035 - Money Forward Apps for Android CVE-2016-4839 Security Vulnerability
OSVDB: - CVE-2016-4839 - Money Forward Inc - Money Forward For Apppass - Medium

scip Labs: https://www.scip.ch/en/?labs.20130704
See also: 🔍

Entryinfo

Created: 05/13/2017 08:52
Updated: 12/23/2020 11:16
Changes: 05/13/2017 08:52 (63), 09/25/2020 18:05 (4), 12/23/2020 11:16 (2)
Complete: 🔍
Cache ID: 216:801:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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