CVEvulnerability
CVE-2021-32919
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-05-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-295
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).
Affected configurations
• prosody prosody (>= 0.10.0 < 0.11.9)
• debian debian linux 10.0
• fedoraproject fedora 32
• fedoraproject fedora 33
• fedoraproject fedora 34
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- http://www.openwall.com/lists/oss-security/2021/05/13/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/14/2 Mailing List, Mitigation, Third Party Advisory
- https://blog.prosody.im/prosody-0.11.9-released/ Release Notes, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202105-15 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4916 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/13/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/14/2 Mailing List, Mitigation, Third Party Advisory
- https://blog.prosody.im/prosody-0.11.9-released/ Release Notes, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202105-15 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4916 Third Party Advisory