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.
References
Link Resource
https://blog.tox.chat/2018/04/security-vulnerability-and-new-toxcore-release Exploit Vendor Advisory
https://github.com/TokTok/c-toxcore/issues/873 Exploit Issue Tracking Third Party Advisory
https://github.com/TokTok/c-toxcore/pull/872 Patch Third Party Advisory
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2021-12-13T00:53:11

Updated: 2021-12-13T00:53:11

Reserved: 2021-12-13T00:00:00


Link: CVE-2018-25022

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-12-13T01:15:07.587

Modified: 2022-02-08T18:55:06.923


Link: CVE-2018-25022

JSON object: View

cve-icon Redhat Information

No data.

CWE