Skip to content
Fencer Vulns
high 7.5

CVE-2016-1232 json

The mod_dialback module in Prosody before 0.9.9 does not properly generate random values for the secret token for server-to-server dialback…

published 2016-01-12 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2333

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The mod_dialback module in Prosody before 0.9.9 does not properly generate random values for the secret token for server-to-server dialback authentication, which makes it easier for attackers to spoof servers via a brute force attack.

Patch / fix

  • prosody Debian 14, Debian 13, Debian 12 0.9.9-1

debian advisories DEBIAN-CVE-2016-1232

  • prosody Ubuntu 14.04 LTS 0.9.1-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2016-1232

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • prosody openSUSE Tumbleweed 0.9.11-1.1

opensuse advisories openSUSE-SU-2024:10489-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-1232 updated cvss 4.3

prosody: use of weak PRNG in generation of dialback secrets

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.18% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.