CVE-2018-17780 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Telegram	Telegram Desktop	1.3.14
Telegram	Telegram Messenger	3.3.0.0

Related Weaknesses (CWE)

CWE-200

References

http://www.securityfocus.com/bid/105521Third Party AdvisoryVDB Entry
https://www.inputzero.io/2018/09/bug-bounty-telegram-cve-2018-17780.htmlExploitThird Party Advisory
http://www.securityfocus.com/bid/105521Third Party AdvisoryVDB Entry
https://www.inputzero.io/2018/09/bug-bounty-telegram-cve-2018-17780.htmlExploitThird Party Advisory

FAQ

What is CVE-2018-17780?

CVE-2018-17780 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 connectio...

How severe is CVE-2018-17780?

CVE-2018-17780 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-17780?

Check the references section above for vendor advisories and patch information. Affected products include: Telegram Telegram Desktop, Telegram Telegram Messenger.