CVE-2019-25024: OpenRepeater (ORP) before 2.2 allows unauthenticated command injection via shell metacharacters in the functions/ajax_system.php post_service parameter.

PriorityP178critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

27.63%

97.8th percentile

OpenRepeater (ORP) before 2.2 allows unauthenticated command injection via shell metacharacters in the functions/ajax_system.php post_service parameter.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
alleghenycreative	openrepeater	< 2.2	2.2

Detection & IOCsextracted from sources · hover to see the quote

urlhttp://openrepeater/functions/ajax_system.php↗

path/functions/ajax_system.php↗

commandcurl -X POST -d "post_service=;id" http://openrepeater/functions/ajax_system.php↗

→Monitor POST requests to /functions/ajax_system.php containing shell metacharacters (e.g., semicolons, pipes, backticks) in the post_service parameter, which indicate unauthenticated OS command injection attempts. ↗
→Flag POST requests where the post_service parameter value begins with or contains a semicolon followed by a command (e.g., post_service=;id), as this is the documented injection pattern. ↗
→No authentication is required to exploit this endpoint; alert on any external/unauthenticated POST to /functions/ajax_system.php. ↗

·The exploit PoC uses a placeholder hostname ('openrepeater'); the actual target URL will vary by deployment. Detection rules should match on the path /functions/ajax_system.php rather than a fixed hostname. ↗
·Only OpenRepeater versions before 2.2 are vulnerable; version 2.2 and later are not affected. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.