CVE-2021-42669 - Vulnerability Details - OpenCVE

Description

A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing "<?php system($_GET["cmd"]); ?>" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.

Published: 2021-11-05

Score: 9.8 Critical

EPSS: 44.2% Moderate

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.44223.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/TheHackingRabbi/CVE-2021-42669
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html

History

No history.

Subscriptions

Engineers Online Portal Project Engineers Online Portal

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-11-05T12:36:43.000Z

Updated: 2024-08-04T03:38:49.315Z

Reserved: 2021-10-18T00:00:00.000Z

Link: CVE-2021-42669

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-11-05T13:15:09.213

Modified: 2024-11-21T06:27:57.490

Link: CVE-2021-42669

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-434

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"<?php system($_GET[\"cmd\"]); ?>\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-11-24T19:38:58.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-42669", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"<?php system($_GET[\"cmd\"]); ?>\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html", "refsource": "MISC", "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"}, {"name": "https://github.com/TheHackingRabbi/CVE-2021-42669", "refsource": "MISC", "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"}, {"name": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671", "refsource": "MISC", "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:38:49.315Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-42669", "datePublished": "2021-11-05T12:36:43.000Z", "dateReserved": "2021-10-18T00:00:00.000Z", "dateUpdated": "2024-08-04T03:38:49.315Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:*", "matchCriteriaId": "A0BC67C5-58BA-4810-8E5C-2DA4382C59D3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"<?php system($_GET[\"cmd\"]); ?>\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de carga de archivos en Sourcecodester Engineers Online Portal en PHP por medio del archivo dashboard_teacher.php, que permite cambiar el avatar mediante el archivo teacher_avatar.php. Una vez que se sube un avatar se sube al directorio /admin/uploads/, y es accesible por todos los usuarios. Subiendo una webshell php que contenga \"\" el atacante puede ejecutar comandos en el servidor web con - /admin/uploads/php-webshell?cmd=id"}], "id": "CVE-2021-42669", "lastModified": "2024-11-21T06:27:57.490", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-05T13:15:09.213", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"}, {"source": "cve@mitre.org", "tags": ["Product", "Third Party Advisory"], "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Primary"}]}