CVE-2018-6580: Arbitrary file upload exists in the Jimtawl 2.1.6 and 2.2.5 component for Joomla! via a view=upload&task=upload&pop=true&tmpl=component request.

PriorityP276critical9.8CVSS 3.0

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

36.87%

98.3th percentile

Arbitrary file upload exists in the Jimtawl 2.1.6 and 2.2.5 component for Joomla! via a view=upload&task=upload&pop=true&tmpl=component request.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
janguo	jimtawl	—	—
janguo	jimtawl	—	—

Detection & IOCsextracted from sources · hover to see the quote

urlindex.php?option=com_jimtawl&view=upload&task=upload&pop=true&tmpl=component↗

path/media/efe_1517496506.php↗

→Detect unauthenticated POST requests to the Jimtawl upload endpoint containing the query parameters view=upload&task=upload&pop=true&tmpl=component targeting com_jimtawl; this is the trigger path for arbitrary file upload exploitation. ↗
→Monitor the Joomla /media/ directory for newly created PHP (or other executable) files following requests to the com_jimtawl upload endpoint, as uploaded webshells are dropped there. ↗
→Flag any HTTP request containing 'option=com_jimtawl' combined with 'task=upload' in the query string as a potential exploitation attempt of CVE-2018-6580. ↗

·The exploit affects both Jimtawl versions 2.1.6 and 2.2.5; ensure detection rules cover both versions and do not assume a single version is in scope. ↗
·The upload endpoint requires no authentication, meaning exploitation is possible without any prior login; perimeter controls relying on authenticated-only blocking will be insufficient. ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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