Improper Authorization Vulnerability in Samsung Members App
CVE-2021-25374

8.6HIGH

Key Information:

Vendor
Samsung
Status
Samsung Members
Vendor
CVE Published:
9 April 2021

Badges

👾 Exploit Exists🟡 Public PoC

Summary

An improper authorization vulnerability exists in the Samsung Members app, specifically affecting the 'samsungrewards' scheme for deeplink functionality. This weakness allows remote attackers to gain unauthorized access to sensitive user data linked to Samsung Accounts, particularly in versions 2.4.83.9 on Android O (8.1) and 3.9.00.9 on Android P (9.0) and later. This vulnerability poses significant risks to user data security and privacy.

Affected Version(s)

Samsung Members Android O(8.x) and below < 2.4.83.9

Samsung Members Android P(9.0) and above < 3.9.00.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-25374_Samsung-Account-Access
Created by WithSecureLabs

References

https://security.samsungmobile.com/
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https://security.samsungmobile.com/serviceWeb.smsb
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EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.