CVE-2021-32919 log

Source	CVE Red Hat MITRE NVD Debian Ubuntu SUSE Alpine Mageia CVE Details CIRCL Bugs Arch Linux Red Hat Gentoo SUSE GitHub Lists oss-security full-disclosure bugtraq Misc GitHub code web search
Severity	Medium
Remote	Yes
Type	Authentication bypass
Description	A security issue was found in the Prosody.im XMPP server software before version 0.11.9. The undocumented option ‘dialback_without_dialback’ enabled an experimental feature for server-to-server authentication. A flaw in this feature meant it did not correctly authenticate remote servers, allowing a remote server to impersonate another server when this option is enabled.

Group	Package	Affected	Fixed	Severity	Status	Ticket
AVG-1955	prosody	1:0.11.8-1	1:0.11.9-1	High	Fixed

Date	Advisory	Group	Package	Severity	Type
19 May 2021	ASA-202105-11	AVG-1955	prosody	High	multiple issues

References
https://prosody.im/security/advisory_20210512/#undocumented-dialback-without-dialback-option-insecure https://hg.prosody.im/trunk/rev/6be890ca492e https://hg.prosody.im/trunk/rev/d0e9ffccdef9

Notes
Workaround ========== The issue can be mitigated by removing or disabling the ‘dialback_without_dialback’ option.