Vulnerability Details : CVE-2018-17780

Telegram Desktop (aka tdesktop) 1.3.14, and Telegram 3.3.0.0 WP8.1 on Windows, leaks end-user public and private IP addresses during a call because of an unsafe default behavior in which P2P connections are accepted from clients outside of the My Contacts list.

Vulnerability category: Information leak

Published 2018-09-29 19:29:00

Updated 2018-12-06 20:25:26

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-17780

Probability of exploitation activity in the next 30 days: 0.12%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 46 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-17780

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:P/I:N/A:N	8.0	2.9	[email protected]
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	2.8	3.6	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2018-17780

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Assigned by: [email protected] (Primary)

References for CVE-2018-17780

https://www.inputzero.io/2018/09/bug-bounty-telegram-cve-2018-17780.html

Exploit;Third Party Advisory
http://www.securityfocus.com/bid/105521

Third Party Advisory;VDB Entry

Products affected by CVE-2018-17780

Telegram » Telegram Desktop » Version: 1.3.14
cpe:2.3:a:telegram:telegram_desktop:1.3.14:*:*:*:*:*:*:*
Matching versions
Telegram » Telegram Messenger » Version: 3.3.0.0 For Windows
cpe:2.3:a:telegram:telegram_messenger:3.3.0.0:*:*:*:*:windows:*:*
Matching versions