Unauthenticated Stream Compression Vulnerability in Prosody and Lightwitch Metronome

CVE-2014-2744 · HIGH Severity

AV:N/AC:L/AU:N/C:N/I:N/A:C

plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a session is unauthenticated, which allows remote attackers to cause a denial of service (resource consumption) via compressed XML elements in an XMPP stream, aka an "xmppbomb" attack.

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