PRIOn knowledge basePRION:CVE-2021-32919Authentication flaw
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).
References
www.openwall.com/lists/oss-security/2021/05/13/1
www.openwall.com/lists/oss-security/2021/05/14/2
blog.prosody.im/prosody-0.11.9-released/
lists.fedoraproject.org/archives/list/[email protected]/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
lists.fedoraproject.org/archives/list/[email protected]/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
lists.fedoraproject.org/archives/list/[email protected]/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
security.gentoo.org/glsa/202105-15
www.debian.org/security/2021/dsa-4916
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