CVE-2017-5661

In Apache FOP before 2.2, files lying on the filesystem of the server which uses FOP can be revealed to arbitrary users who send maliciously formed SVG files. The file types that can be shown depend on the user context in which the exploitable application is running. If the user is root a full compromise of the server - including confidential or sensitive files - would be possible. XXE can also be used to attack the availability of the server via denial of service as the references within a xml document can trivially trigger an amplification attack.

CVSS v3 7.3 HIGH
CVSS v2.0 7.9 HIGH

7.3^/10

CVSS v3 : HIGH

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

Exploitability : 2.1 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.9^/10

CVSS v2.0 : HIGH

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

Exploitability : 6.8 / Impact : 9.2

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://www.debian.org/security/2017/dsa-3864
http://www.securityfocus.com/bid/97947
https://www.tenable.com/security/tns-2021-14
https://xmlgraphics.apache.org/security.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:formatting_objects_processor:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-04-18 14:59

Updated : 2023-12-10 12:01

NVD link : CVE-2017-5661

Mitre link : CVE-2017-5661

CVE.ORG link : CVE-2017-5661

JSON object : View

Products Affected

apache

formatting_objects_processor

CWE

CWE-611

Improper Restriction of XML External Entity Reference

{"id": "CVE-2017-5661", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.9, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:C/I:N/A:C", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 9.2, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.1}]}, "published": "2017-04-18T14:59:00.150", "references": [{"url": "http://www.debian.org/security/2017/dsa-3864", "source": "security@apache.org"}, {"url": "http://www.securityfocus.com/bid/97947", "source": "security@apache.org"}, {"url": "https://www.tenable.com/security/tns-2021-14", "source": "security@apache.org"}, {"url": "https://xmlgraphics.apache.org/security.html", "tags": ["Patch", "Vendor Advisory"], "source": "security@apache.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-611"}]}], "descriptions": [{"lang": "en", "value": "In Apache FOP before 2.2, files lying on the filesystem of the server which uses FOP can be revealed to arbitrary users who send maliciously formed SVG files. The file types that can be shown depend on the user context in which the exploitable application is running. If the user is root a full compromise of the server - including confidential or sensitive files - would be possible. XXE can also be used to attack the availability of the server via denial of service as the references within a xml document can trivially trigger an amplification attack."}, {"lang": "es", "value": "En Apache FOP en versiones anteriores a 2.2, los archivos que se basan en el sistema de archivos del servidor que utiliza FOP pueden ser revelados a usuarios arbitrarios que mandasen archivos SVG formados maliciosamente. Los tipos de archivo que se pueden mostrar dependen del contexto de usuario en el que la aplicaci\u00f3n explotada se est\u00e1 ejecutando. Si el usuario es root, un comprometimiento completo del servidor - incluyendo los archivos sensibles y confidenciales - ser\u00eda posible. XXE tambi\u00e9n puede ser utilizado para atacar la disponibilidad del servidor a trav\u00e9s de una denegaci\u00f3n del servicio, ya que las referencias dentro de un documento xml pueden desencadenar trivialmente un ataque de amplificaci\u00f3n."}], "lastModified": "2021-07-22T18:15:19.090", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:formatting_objects_processor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC727867-D12D-4F25-864B-68023C2845C5", "versionEndIncluding": "2.1"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}