Vulnerability Report

CVE-2018-15543

Title: Telegram Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2018-15543.

CWE Category CWE-287
Published Date Oct 09, 2018
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 6.8 CVSS v3.0
Exploit Probability (EPSS)
0.43%

Vulnerability Summary

CVE-2018-15543: An issue was discovered in the org.telegram.messenger application 4.8.11 for Android. The FingerprintManager class for Biometric validation allows authentication bypass through the callback method from onAuthenticationFailed to onAuthenticationSucceeded with null, because the fingerprint API in conjunction with the Android keyGenerator class is not implemented. In other words, an attacker could authenticate with an arbitrary fingerprint. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes Android devices on which rooting has occurred

Impacted Vendors

T
telegram 1

Reference Links

https://gist.github.com/tanprathan/d286c0d5b02e344606287774304a1ccd https://gist.github.com/tanprathan/d286c0d5b02e344606287774304a1ccd
CVSS v3.0
Source Entity [email protected]
Severity MEDIUM
6.8
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-15543 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector PHYSICAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.