CVE-2016-9487

EpubCheck 4.0.1 does not properly restrict resolving external entities when parsing XML in EPUB files during validation. An attacker who supplies a specially crafted EPUB file may be able to exploit this behavior to read arbitrary files, or have the victim execute arbitrary requests on his behalf, abusing the victim's trust relationship with other entities.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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://www.kb.cert.org/vuls/id/779243	Third Party Advisory US Government Resource
https://www.securityfocus.com/bid/94864/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:w3:epubcheck:4.0.1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-07-13 20:29

Updated : 2024-02-04 20:03

NVD link : CVE-2016-9487

Mitre link : CVE-2016-9487

CVE.ORG link : CVE-2016-9487

JSON object : View

Products Affected

w3

epubcheck

CWE

CWE-611

Improper Restriction of XML External Entity Reference

{"id": "CVE-2016-9487", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2018-07-13T20:29:01.520", "references": [{"url": "https://www.kb.cert.org/vuls/id/779243", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cret@cert.org"}, {"url": "https://www.securityfocus.com/bid/94864/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cret@cert.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-611"}]}, {"type": "Secondary", "source": "cret@cert.org", "description": [{"lang": "en", "value": "CWE-611"}]}], "descriptions": [{"lang": "en", "value": "EpubCheck 4.0.1 does not properly restrict resolving external entities when parsing XML in EPUB files during validation. An attacker who supplies a specially crafted EPUB file may be able to exploit this behavior to read arbitrary files, or have the victim execute arbitrary requests on his behalf, abusing the victim's trust relationship with other entities."}, {"lang": "es", "value": "EpubCheck 4.0.1 no restringe correctamente la resoluci\u00f3n de entidades externas al analizar XML en archivos EPUB durante la validaci\u00f3n. Un atacante que proporciona un archivo EPUB especialmente manipulado podr\u00eda ser capaz de explotar este comportamiento para leer archivos arbitrarios o hacer que la v\u00edctima ejecute peticiones arbitrarias en su nombre, abusando de la relaci\u00f3n de confianza de la v\u00edctima con otras entidades."}], "lastModified": "2019-10-09T23:20:31.523", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:w3:epubcheck:4.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2959FEA5-E159-49D6-82D2-7571083FA262"}], "operator": "OR"}]}], "sourceIdentifier": "cret@cert.org"}