CVE-2014-4912

published 2018-03-22

CVE-2014-4912: An Arbitrary File Upload issue was discovered in Frog CMS 0.9.5 due to lack of extension validation.

Priority P2 66 critical 9.8 CVSS 3.0

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

EXPLOIT

An Arbitrary File Upload issue was discovered in Frog CMS 0.9.5 due to lack of extension validation.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
frog_cms_project	frog_cms	—	—

Detection & IOCs extracted from sources · hover to see the quote

url http://localhost/frog_095/admin/?/plugin/file_manager/images↗

url http://localhost/Frog/frog_095/public/images/↗

path /admin/?/plugin/file_manager/images↗

path /public/images/↗

• → Monitor HTTP POST requests to the file_manager plugin upload endpoint (/admin/?/plugin/file_manager/) for uploads of executable file types (e.g., .php), indicating exploitation of missing extension validation. ↗
• → Alert on PHP (or other executable script) files appearing under the /public/images/ web-accessible directory, as this is the expected drop location for uploaded webshells. ↗
• → Unauthenticated HTTP requests to files placed under /public/images/ should be treated as potential webshell execution attempts, since no authentication is required to trigger uploaded files. ↗

• · All authenticated CMS users (not just admins) have upload capability, broadening the attack surface beyond privileged accounts. ↗

CVSS provenance

nvd v3.0 9.8 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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