CVE-2016-0756

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Summary

CVECVE-2016-0756
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-01-29 20:59:06 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 5.3 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem Types: CWE-20 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Prosody Prosody All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 23 Update: prosody-0.9.10-1.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Prosody XMPP Server CVE-2016-0756 Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
#596 Dialback key generation in 0.9 allows servers to impersonate to suffices (closed) - Prosody IM Issue Tracker af854a3a-2127-422b-91ae-364da2661108 prosody.im
oss-security - CVE-2016-0756: Prosody XMPP server: insecure dialback key generation/validation algorithm af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
[SECURITY] Fedora 22 Update: prosody-0.9.10-1.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Prosody security advisory 2016/01/08 - 1 af854a3a-2127-422b-91ae-364da2661108 prosody.im Vendor Advisory
Debian -- Security Information -- DSA-3463-1 prosody af854a3a-2127-422b-91ae-364da2661108 www.debian.org
Prosody 0.9.10 released - Prosodical Thoughts af854a3a-2127-422b-91ae-364da2661108 blog.prosody.im Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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