CVE-2021-32919

EUVD-2021-19641
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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
Affected Products (NVD)
VendorProductVersion
prosodyprosody
0.10.0 ≤
𝑥
< 0.11.9
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
prosody
bookworm
0.12.3-1
fixed
bullseye
0.11.9-2+deb11u2
fixed
bullseye (security)
0.11.9-2+deb11u2
fixed
sid
0.12.4-2
fixed
stretch
not-affected
trixie
0.12.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
prosody
bionic
needed
focal
needed
groovy
ignored
hirsute
ignored
impish
ignored
jammy
needed
kinetic
ignored
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
needs-triage