CVE-2017-16853

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.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://shibboleth.net/community/advisories/secadv_20171115.txt	Issue Tracking Vendor Advisory
https://git.shibboleth.net/view/?p=cpp-opensaml.git;a=commit;h=6182b0acf2df670e75423c2ed7afe6950ef11c9d	Issue Tracking Patch Vendor Advisory
https://bugs.debian.org/881856	Issue Tracking Third Party Advisory
https://www.debian.org/security/2017/dsa-4039	Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/101898	Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2017/11/msg00024.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:shibboleth:opensaml:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2017-11-16 09:29

Updated : 2018-02-03 18:29

NVD link : CVE-2017-16853

Mitre link : CVE-2017-16853

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

Products Affected

debian

debian_linux

shibboleth

opensaml

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://shibboleth.net/community/advisories/secadv_20171115.txt", "name": "https://shibboleth.net/community/advisories/secadv_20171115.txt", "tags": ["Issue Tracking", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://git.shibboleth.net/view/?p=cpp-opensaml.git;a=commit;h=6182b0acf2df670e75423c2ed7afe6950ef11c9d", "name": "https://git.shibboleth.net/view/?p=cpp-opensaml.git;a=commit;h=6182b0acf2df670e75423c2ed7afe6950ef11c9d", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://bugs.debian.org/881856", "name": "https://bugs.debian.org/881856", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.debian.org/security/2017/dsa-4039", "name": "DSA-4039", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "http://www.securityfocus.com/bid/101898", "name": "101898", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00024.html", "name": "[debian-lts-announce] 20171118 [SECURITY] [DLA 1178-1] opensaml2 security update", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-347"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2017-16853", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}}, "publishedDate": "2017-11-16T17:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:shibboleth:opensaml:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.6.1"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2018-02-04T02:29Z"}

8.1 /10