CVE-2021-46013

An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. Once a php webshell containing "<?php system($_GET["cmd"]); ?>" gets uploaded it is saved into /uploads/exam_question/ directory, and is accessible by all users.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.exploit-db.com/exploits/50587	Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/50587	Exploit Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:free_school_management_software_project:free_school_management_software:1.0:*:*:*:*:*:*:*

History

21 Nov 2024, 06:33

Type	Values Removed	Values Added
References	~~() https://www.exploit-db.com/exploits/50587 - Exploit, Third Party Advisory, VDB Entry~~	() https://www.exploit-db.com/exploits/50587 - Exploit, Third Party Advisory, VDB Entry

24 Jan 2022, 20:32

Type	Values Removed	Values Added
CWE		CWE-434
CPE		cpe:2.3:a:free_school_management_software_project:free_school_management_software:1.0:::::::*
References	~~(MISC) https://www.exploit-db.com/exploits/50587 -~~	(MISC) https://www.exploit-db.com/exploits/50587 - Exploit, Third Party Advisory, VDB Entry
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8

18 Jan 2022, 18:28

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-01-18 18:15

Updated : 2024-11-21 06:33

NVD link : CVE-2021-46013

Mitre link : CVE-2021-46013

CVE.ORG link : CVE-2021-46013

JSON object : View

Products Affected

free_school_management_software_project

free_school_management_software

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

{"id": "CVE-2021-46013", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-01-18T18:15:08.380", "references": [{"url": "https://www.exploit-db.com/exploits/50587", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://www.exploit-db.com/exploits/50587", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. Once a php webshell containing \"<?php system($_GET[\"cmd\"]); ?>\" gets uploaded it is saved into /uploads/exam_question/ directory, and is accessible by all users."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de carga de archivos sin restricciones en Sourcecodester Free school management software versi\u00f3n 1.0. Un atacante puede aprovechar esta vulnerabilidad para permitir una ejecuci\u00f3n de c\u00f3digo remota en el servidor web afectado. Una vez que es subido un webshell php que contiene \"(?php system($_GET[\"cmd\"]); ?)\" es guardado en el directorio /uploads/exam_question/, y es accesible por todos los usuarios"}], "lastModified": "2024-11-21T06:33:28.697", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:free_school_management_software_project:free_school_management_software:1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "482F4837-9403-4305-9A21-E322D4B7B340"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}