National Payments of India BHIM App 1.3 on Android OTP improper authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability classified as critical was found in National Payments of India BHIM App 1.3 on Android (Android App Software). Affected by this vulnerability is an unknown code of the component OTP Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The National Payments Corporation of India BHIM application 1.3 for Android does not properly restrict use of the OTP feature, which makes it easier for attackers to bypass authentication.

The bug was discovered 08/21/2018. The weakness was released 08/24/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-9819 since 06/22/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 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.

Entries connected to this vulnerability are available at 123210, 123212 and 123213.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

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

06/22/2017 🔍
08/21/2018 +425 days 🔍
08/24/2018 +2 days 🔍
08/24/2018 +0 days 🔍
08/25/2018 +1 days 🔍
05/04/2023 +1713 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-9819 (🔍)
X-Force: 148926

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

Entryinfo

Created: 08/25/2018 08:31 AM
Updated: 05/04/2023 01:25 PM
Changes: 08/25/2018 08:31 AM (60), 03/18/2020 06:50 AM (1), 05/04/2023 01:25 PM (3)
Complete: 🔍

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