Lack of Out-of-Band Verification in Briar Introduction Client Allows Man-in-the-Middle Attacks

Lack of Out-of-Band Verification in Briar Introduction Client Allows Man-in-the-Middle Attacks

CVE-2023-33983 · HIGH Severity

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

The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.

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