CVE-2016-0756

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-01-29 · updated 2026-06-17
Weakness: CWE-20

Description

The generate_dialback function in the mod_dialback module in Prosody before 0.9.10 does not properly separate fields when generating dialback keys, which allows remote attackers to spoof XMPP network domains via a crafted stream id and domain name that is included in the target domain as a suffix.

Affected products

Prosody: through 0.9.9

References

http://blog.prosody.im/prosody-0-9-10-released/
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176796.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176914.html
http://www.debian.org/security/2016/dsa-3463
http://www.openwall.com/lists/oss-security/2016/01/27/10
http://www.securityfocus.com/bid/82241
https://prosody.im/issues/issue/596
https://prosody.im/security/advisory_20160127/
http://blog.prosody.im/prosody-0-9-10-released/
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176796.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176914.html
http://www.debian.org/security/2016/dsa-3463

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