CVE-2021-32919

Description

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).

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.40%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory prosody.im
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://blog.prosody.im/prosody-0.11.9-released/ release notes vendor advisory
http://www.openwall.com/lists/oss-security/2021/05/13/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2021/05/14/2 mailing list mitigation third party advisory
https://www.debian.org/security/2021/dsa-4916 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ vendor advisory
https://security.gentoo.org/glsa/202105-15 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-32919?
CVE-2021-32919 has been scored as a high severity vulnerability.
How to fix CVE-2021-32919?
To fix CVE-2021-32919, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32919 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-32919 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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