The 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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-16853 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 6.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | Low |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss Portal Platform 6 | opensaml | Not affected |
| Red Hat JBoss Operations Network 3 | opensaml | Not affected |
| Red Hat JBoss Fuse Service Works 6 | opensaml | Not affected |
| Red Hat JBoss EAP 7 | opensaml-core | Not affected |
| Red Hat JBoss EAP 6 | opensaml | Not affected |
| Red Hat JBoss Data Virtualization 6 | opensaml | Not affected |
| Red Hat JBoss Data Grid 6 | opensaml | Not affected |
Vulmon