VDB-104745 · CVE-2016-7812 · BID 94829

Bank of Tokyo-Mitsubishi UFJ App up to 5.2.2/5.3.1 TLS cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Bank of Tokyo-Mitsubishi UFJ App up to 5.2.2/5.3.1. This vulnerability affects unknown code of the component TLS Handler. Performing a manipulation results in cryptographic issue. This vulnerability is known as CVE-2016-7812. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Bank of Tokyo-Mitsubishi UFJ App up to 5.2.2/5.3.1 (Banking Software). This affects an unknown code of the component TLS Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Bank of Tokyo-Mitsubishi UFJ, Ltd. App for Android ver5.3.1, ver5.2.2 and earlier allow a man-in-the-middle attacker to downgrade the communication between the app and the server from TLS v1.2 to SSL v3.0, which may result in the attacker to eavesdrop on an encrypted communication.

The bug was discovered 12/06/2016. The weakness was published 08/02/2017 (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2016-7812 since 09/09/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 239 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94829†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/09/2016 🔍
12/06/2016 +88 days 🔍
12/06/2016 +0 days 🔍
08/02/2017 +239 days 🔍
08/02/2017 +0 days 🔍
08/02/2017 +0 days 🔍
01/07/2021 +1254 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Reo Yoshida
Status: Not defined

CVE: CVE-2016-7812 (🔍)
GCVE (CVE): GCVE-0-2016-7812
GCVE (VulDB): GCVE-100-104745
SecurityFocus: 94829 - Bank of Tokyo Mitsubishi UFJ CVE-2016-7812 Man in the Middle Information Disclosure Vulnerability

Entryinfo

Created: 08/02/2017 22:26
Updated: 01/07/2021 07:23
Changes: 08/02/2017 22:26 (60), 11/03/2019 08:07 (3), 01/07/2021 07:23 (2)
Complete: 🔍
Cache ID: 216::103

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

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