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
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32919
- https://www.openwall.com/lists/oss-security/2021/05/13/1
- https://prosody.im/security/advisory_20210512.txt
- https://hg.prosody.im/trunk/rev/6be890ca492e
- https://hg.prosody.im/trunk/rev/d0e9ffccdef9
- https://blog.prosody.im/prosody-0.11.9-released/
- NVD
- Launchpad
- Debian