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Vulnerability details: VCID-r5gj-jp7x-aaaq
Vulnerability ID VCID-r5gj-jp7x-aaaq
Aliases CVE-2017-16852
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 7.3
Risk 3.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-347 Improper Verification of Cryptographic Signature
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-16852.html
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epss 0.00443 https://api.first.org/data/v1/epss?cve=CVE-2017-16852
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generic_textual Medium https://bugs.debian.org/881857
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16852
cvssv2 7.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 7.4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Medium https://git.shibboleth.net/view/?p=cpp-sp.git;a=commit;h=b66cceb0e992c351ad5e2c665229ede82f261b16
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2017-16852
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2017-16852
generic_textual Medium https://shibboleth.net/community/advisories/secadv_20171115.txt
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-16852.html
https://api.first.org/data/v1/epss?cve=CVE-2017-16852
https://bugs.debian.org/881857
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16852
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=b66cceb0e992c351ad5e2c665229ede82f261b16
https://git.shibboleth.net/view/?p=cpp-sp.git;a=commit;h=b66cceb0e992c351ad5e2c665229ede82f261b16
https://lists.debian.org/debian-lts-announce/2017/11/msg00025.html
https://shibboleth.net/community/advisories/secadv_20171115.txt
https://www.debian.org/security/2017/dsa-4038
881857 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881857
cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2017-16852 https://nvd.nist.gov/vuln/detail/CVE-2017-16852
No exploits are available.
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-16852
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-16852
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.54103
EPSS Score 0.00315
Published At June 2, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.