CVE-2021-46398

A Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and get access to the filesystem via a malicious HTML webpage that is sent to the victim. An admin can run commands using the FileBrowser and hence it leads to RCE.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

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://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html	Exploit Third Party Advisory
https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d	Patch Third Party Advisory
https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7	Exploit Third Party Advisory
https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/	Exploit Third Party Advisory
http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html	Exploit Third Party Advisory VDB Entry
https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7	Exploit Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

Information

Published : 2022-02-04 08:15

Updated : 2022-03-04 08:39

NVD link : CVE-2021-46398

Mitre link : CVE-2021-46398

JSON object : View

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

Advertisement

Products Affected

filebrowser

filebrowser

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html", "name": "https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d", "name": "https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7", "name": "https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/", "name": "https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html", "name": "http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7", "name": "https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and get access to the filesystem via a malicious HTML webpage that is sent to the victim. An admin can run commands using the FileBrowser and hence it leads to RCE."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-352"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-46398", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"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"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/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": 2.8}}, "publishedDate": "2022-02-04T16:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.18.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-03-04T16:39Z"}