CVE-2017-5539

The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.

CVSS v3 9.1 CRITICAL
CVSS v2.0 9.0 HIGH

9.1^/10

CVSS v3 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 8.5

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://b2evolution.net/downloads/6-8-5	Patch Vendor Advisory
http://www.securityfocus.com/bid/95700	Third Party Advisory VDB Entry
https://github.com/b2evolution/b2evolution/commit/e35f7c195d8c1103d2d981a48cda5ab45ecac48a	Issue Tracking Patch Third Party Advisory
https://github.com/b2evolution/b2evolution/issues/36	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:b2evolution:b2evolution:6.8.4:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-01-23 07:59

Updated : 2023-12-10 12:01

NVD link : CVE-2017-5539

Mitre link : CVE-2017-5539

CVE.ORG link : CVE-2017-5539

JSON object : View

Products Affected

b2evolution

b2evolution

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2017-5539", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:C/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 8.5, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2017-01-23T07:59:00.500", "references": [{"url": "http://b2evolution.net/downloads/6-8-5", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/95700", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://github.com/b2evolution/b2evolution/commit/e35f7c195d8c1103d2d981a48cda5ab45ecac48a", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/b2evolution/b2evolution/issues/36", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists."}, {"lang": "es", "value": "El parche para el salto de directorio (CVE-2017-5480) en b2evolution versi\u00f3n 6.8.4-stable tiene una vulnerabilidad eludible. Un atacante puede utilizar ..\\/ para eludir la regla de filtro. Luego. este atacante puede explotar esta vulnerabilidad para borrar o leer cualquier archivo en el servidor. Esto puede ser utilizado tambi\u00e9n para determinar si existe un archivo."}], "lastModified": "2019-10-03T00:03:26.223", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:b2evolution:b2evolution:6.8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E378D53E-A877-4CBE-A94E-5DF6B23AA879"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}