CVE-2016-0756
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.05% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.9% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-01-29 20:00Z10 YR AGO
- Last updated
- 2024-08-05 22:30Z2 YR AGO
- Reserved
- 2015-12-16
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- e0ab10c4208f5ed77c482ff686f7f3e38ef38e3bdf63cc5318262b5edaf4827e
05 Affected products
06 References
- lists.fedoraproject.orgFEDORA-2016-e2c5111edahttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176796.html
- www.securityfocus.com82241http://www.securityfocus.com/bid/82241
- lists.fedoraproject.orgFEDORA-2016-5a5c85c5a8http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176914.html
- prosody.imhttps://prosody.im/issues/issue/596
- www.openwall.com[oss-security] 20160127 CVE-2016-0756: Prosody XMPP server: insecure dialback key generation/validation algorithmhttp://www.openwall.com/lists/oss-security/2016/01/27/10
- blog.prosody.imhttp://blog.prosody.im/prosody-0-9-10-released/
- www.debian.orgDSA-3463http://www.debian.org/security/2016/dsa-3463
- prosody.imhttps://prosody.im/security/advisory_20160127/
07 Fixed in
Debian 12
- prosody Fixed in 0.9.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- prosody Fixed in 0.9.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- prosody Fixed in 0.9.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- prosody Fixed in 0.9.10-1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.