CVE-2017-16853 is a high-severity vulnerability in the DynamicMetadataProvider class of OpenSAML-C in OpenSAML before version 2.6.1, affecting Debian and Shibboleth distributions. This flaw prevents critical security checks like signature verification and validity period enforcement, leading to potential compromise of SAML metadata. With a CVSS score of 8.1 (HIGH), it allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability with high attack complexity. Despite its severity, there is no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.6.1CPE matchmatch criteria | cpe:2.3:a:shibboleth:opensaml:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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