Privacy Flaw in Telegram App for Android and iOS
CVE-2019-15514

5.3MEDIUM

Key Information:

Vendor

Telegram

Status
Telegram
Vendor
CVE Published:
23 August 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-15514?

The Telegram app version 5.10 for Android and iOS exhibits a privacy exposure where the 'Privacy > Phone Number' feature misleadingly indicates that the access level is restricted to 'Nobody.' However, attackers can exploit this flaw to discover users' phone numbers by utilizing the Group Info feature, potentially harvesting a substantial amount of region-based numbers. This exposes users to unwanted privacy breaches and highlights the need for heightened security measures.

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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-2019-15514
Created by bibi1959

References

https://docs.google.com/document/d/e/2PACX-1vRx2wO2kj0axl...
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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