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CVE-2021-32919

Published: 13 May 2021

An issue was discovered in Prosody before 0.11.9. The undocumented dialback_without_dialback option in mod_dialback enables an experimental feature for server-to-server authentication. It does not correctly authenticate remote server certificates, allowing a remote server to impersonate another server (when this option is enabled).

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
prosody
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

upstream
Released (0.11.9)
xenial Needs triage

kinetic Ignored
(end of life, was needed)
jammy Needed

impish Ignored
(end of life)
lunar Not vulnerable
(0.12.1-1)
mantic Not vulnerable
(0.12.1-1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N