CVE-2017-16853

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Summary

CVECVE-2017-16853
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-11-16 17:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe DynamicMetadataProvider class in saml/saml2/metadata/impl/DynamicMetadataProvider.cpp in OpenSAML-C in OpenSAML before 2.6.1 fails to properly configure itself with the MetadataFilter plugins and does not perform critical security checks such as signature verification, enforcement of validity periods, and other checks specific to deployments, aka CPPOST-105.

Risk And Classification

Primary CVSS: v3.0 8.1 HIGH from [email protected]

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

EPSS: 0.006940000 probability, percentile 0.720370000 (date 2026-05-13)

Problem Types: CWE-347 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.1HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

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

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

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Shibboleth Opensaml All All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
OpenSAML CVE-2017-16853 Multipal Security Bypass Vulnerabilites af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
#881856 - opensaml2: CVE-2017-16853: Dynamic MetadataProvider fails to install security filters (CPPOST-105) - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org Issue Tracking, Third Party Advisory
[SECURITY] [DLA 1178-1] opensaml2 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.shibboleth.net Git - cpp-opensaml.git/commit af854a3a-2127-422b-91ae-364da2661108 git.shibboleth.net
shibboleth.net/community/advisories/secadv_20171115.txt af854a3a-2127-422b-91ae-364da2661108 shibboleth.net Issue Tracking, Vendor Advisory
Debian -- Security Information -- DSA-4039-1 opensaml2 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Issue Tracking, Third Party Advisory
git.shibboleth.net Git - cpp-opensaml.git/commit MITRE git.shibboleth.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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