Vulnerability Monitor

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CVE-2017-16852

shibsp/metadata/DynamicMetadataProvider.cpp in the Dynamic MetadataProvider plugin in Shibboleth Service Provider 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 SSPCPP-763.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 2 products from shibboleth, from debian organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-11-16T17:29:00.450

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.1 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-347

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	shibboleth	service_provider	< 2.6.1	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes

References

https://bugs.debian.org/881857 Issue Tracking, Third Party Advisory ([email protected])
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=b66cceb0e992c351ad5e2c665229ede82f261b16 ([email protected])
https://lists.debian.org/debian-lts-announce/2017/11/msg00025.html ([email protected])
https://shibboleth.net/community/advisories/secadv_20171115.txt Issue Tracking, Vendor Advisory ([email protected])
https://www.debian.org/security/2017/dsa-4038 Issue Tracking, Third Party Advisory ([email protected])
https://bugs.debian.org/881857 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=b66cceb0e992c351ad5e2c665229ede82f261b16 (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2017/11/msg00025.html (af854a3a-2127-422b-91ae-364da2661108)
https://shibboleth.net/community/advisories/secadv_20171115.txt Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2017/dsa-4038 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For shibboleth's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.