VDB-101128 · CVE-2016-4838 · BID 93034

Money Forward on Android input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Money Forward on Android. It has been declared as critical. Impacted is an unknown function. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2016-4838. The attack requires local access. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Money Forward on Android (Android App Software) (version now known) and classified as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 allows an attacker to execute unintended operations via a specially crafted application.

The bug was discovered 09/20/2016. The weakness was presented 05/12/2017 (Website). The advisory is shared for download at jvn.jp. This vulnerability was named CVE-2016-4838 since 05/17/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

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 93034†). See VDB-101129 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Input validation
CWE: CWE-20
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-2016-4838 (🔍)
GCVE (CVE): GCVE-0-2016-4838
GCVE (VulDB): GCVE-100-101128
SecurityFocus: 93034 - Money Forward Apps for Android CVE-2016-4838 Security Bypass Vulnerability
OSVDB: - CVE-2016-4838 - 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 11:11
Changes: 05/13/2017 08:52 (60), 09/25/2020 17:58 (4), 12/23/2020 11:11 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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