CVE-2017-6920 - Vulnerability Details - OpenCVE

Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.67036.

Key SSVC decision points have not yet been added.

Vendors	Products
Drupal	Drupal

Configuration 1 [-]

cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://www.securityfocus.com/bid/99211
http://www.securitytracker.com/id/1038781
https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple

History

No history.

MITRE

Status: PUBLISHED

Assigner: drupal

Published: 2018-08-06T15:00:00Z

Updated: 2024-09-16T18:33:33.933Z

Reserved: 2017-03-16T00:00:00

Link: CVE-2017-6920

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-08-06T15:29:00.237

Modified: 2024-11-21T03:30:48.797

Link: CVE-2017-6920

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "Drupal Core", "vendor": "Drupal.org", "versions": [{"status": "affected", "version": "8 prior to 8.3.4"}]}], "datePublic": "2017-06-21T00:00:00", "descriptions": [{"lang": "en", "value": "Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations."}], "problemTypes": [{"descriptions": [{"description": "Remote Code Execution", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-08-07T09:57:01", "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "shortName": "drupal"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple"}, {"name": "99211", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/99211"}, {"name": "1038781", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1038781"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@drupal.org", "DATE_PUBLIC": "2017-06-21T00:00:00", "ID": "CVE-2017-6920", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Drupal Core", "version": {"version_data": [{"version_value": "8 prior to 8.3.4"}]}}]}, "vendor_name": "Drupal.org"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Remote Code Execution"}]}]}, "references": {"reference_data": [{"name": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple", "refsource": "CONFIRM", "url": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple"}, {"name": "99211", "refsource": "BID", "url": "http://www.securityfocus.com/bid/99211"}, {"name": "1038781", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1038781"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T15:49:01.366Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple"}, {"name": "99211", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/99211"}, {"name": "1038781", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1038781"}]}]}, "cveMetadata": {"assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "assignerShortName": "drupal", "cveId": "CVE-2017-6920", "datePublished": "2018-08-06T15:00:00Z", "dateReserved": "2017-03-16T00:00:00", "dateUpdated": "2024-09-16T18:33:33.933Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*", "matchCriteriaId": "B0C572FD-C76D-4714-85A3-5CFF9F292C2C", "versionEndExcluding": "8.3.4", "versionStartIncluding": "8.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Drupal core 8 before versions 8.3.4 allows remote attackers to execute arbitrary code due to the PECL YAML parser not handling PHP objects safely during certain operations."}, {"lang": "es", "value": "Drupal core 8 en versiones anteriores a la 8.3.4 permite que los atacantes remotos ejecuten c\u00f3digo arbitrario debido a que el analizador PECL YAML no maneja objetos PHP de forma segura durante determinadas operaciones."}], "id": "CVE-2017-6920", "lastModified": "2024-11-21T03:30:48.797", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-08-06T15:29:00.237", "references": [{"source": "mlhess@drupal.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/99211"}, {"source": "mlhess@drupal.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1038781"}, {"source": "mlhess@drupal.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/99211"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1038781"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple"}], "sourceIdentifier": "mlhess@drupal.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-19"}], "source": "nvd@nist.gov", "type": "Primary"}]}