CVE-2018-25022 Information

Description

The Onion module in toxcore before 0.2.2 doesn’t restrict which packets can be onion-routed which allows a remote attacker to discover a target user’s IP address (when knowing only their Tox Id) by positioning themselves close to target’s Tox Id in the DHT for the target to establish an onion connection with the attacker guessing the target’s DHT public key and creating a DHT node with public key close to it and finally onion-routing a NAT Ping Request to the target requesting it to ping the just created DHT node.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Reference

https://github.com/TokTok/c-toxcore/pull/872 https://github.com/TokTok/c-toxcore/issues/873 https://blog.tox.chat/2018/04/security-vulnerability-and-new-toxcore-release

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.1