CVE-2017-1000246 - Vulnerability Details - OpenCVE

Description

Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in the IDP server, resulting in weak encryption of data.

Published: 2017-11-17

Score: 5.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2017-0105	Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in the IDP server, resulting in weak encryption of data.
Github GHSA	GHSA-cq94-qf6q-mf2h	Pysaml2 improperly initializes encryption vector

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00122.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/rohe/pysaml2/issues/417
https://nvd.nist.gov/vuln/detail/CVE-2017-1000246
https://www.cve.org/CVERecord?id=CVE-2017-1000246

History

No history.

Subscriptions

Pysaml2 Project Pysaml2

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-11-17T04:00:00.000Z

Updated: 2024-09-17T04:04:14.264Z

Reserved: 2017-11-16T00:00:00.000Z

Link: CVE-2017-1000246

Vulnrichment

No data.

NVD

Status : Modified

Published: 2017-11-17T04:29:00.513

Modified: 2026-05-13T00:24:29.033

Link: CVE-2017-1000246

Redhat

Severity : Low

Publid Date: 2017-05-24T00:00:00Z

Links: CVE-2017-1000246 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:*", "matchCriteriaId": "A295FE59-C165-4BD4-89D8-A531122BED19", "versionEndExcluding": "4.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in the IDP server, resulting in weak encryption of data."}, {"lang": "es", "value": "El paquete pysaml2 de Python en versiones 4.4.0 y anteriores reutiliza el vector de inicializaci\u00f3n a lo largo de los cifrados en el servidor IDP, provocando un cifrado d\u00e9bil de los datos."}], "id": "CVE-2017-1000246", "lastModified": "2026-05-13T00:24:29.033", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-11-17T04:29:00.513", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/rohe/pysaml2/issues/417"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/rohe/pysaml2/issues/417"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-330"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "python-pysaml2: Reuse of AES initialization vector in AESCipher", "id": "1524420", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1524420"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-323", "details": ["Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in the IDP server, resulting in weak encryption of data."], "name": "CVE-2017-1000246", "package_state": [{"cpe": "cpe:/a:redhat:openstack:7", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:11", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat OpenStack Platform 11 (Ocata)"}, {"cpe": "cpe:/a:redhat:openstack:12", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat OpenStack Platform 12 (Pike)"}, {"cpe": "cpe:/a:redhat:openstack:8", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat OpenStack Platform 8 (Liberty)"}, {"cpe": "cpe:/a:redhat:openstack:9", "fix_state": "Will not fix", "package_name": "python-pysaml2", "product_name": "Red Hat OpenStack Platform 9 (Mitaka)"}], "public_date": "2017-05-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-1000246\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-1000246"], "statement": "Red Hat Product Security has rated this issue as having security impact of Low for:\n* Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7\n* Red Hat OpenStack Platform 8.0 (Liberty)\n* Red Hat OpenStack Platform 9.0 (Mitaka)\n* Red Hat OpenStack Platform 10.0 (Newton) \n* Red Hat OpenStack Platform 11.0 (Ocata)\n* Red Hat OpenStack Platform 12.0 (Pike)\nAlthough the affected code is present in shipped packages, python-pysaml2 is included only as a dependency of other packages. The affected code cannot be reached in any supported configuration of Red Hat OpenStack Platform.\nThis issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.", "threat_severity": "Low"}