CVE-2018-17916: InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior to 2017 SP2. A remote attacker could send…

PriorityP262critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

3.73%

88.5th percentile

InduSoft Web Studio versions prior to 8.1 SP2, and InTouch Edge HMI (formerly InTouch Machine Edition) versions prior to 2017 SP2. A remote attacker could send a carefully crafted packet to exploit a stack-based buffer overflow vulnerability during tag, alarm, or event related actions such as read and write, with potential for code to be executed. If InduSoft Web Studio remote communication security was not enabled, or a password was left blank, a remote user could send a carefully crafted packet to invoke an arbitrary process, with potential for code to be executed. The code would be executed under the privileges of the InduSoft Web Studio or InTouch Edge HMI runtime and could lead to a compromise of the InduSoft Web Studio or InTouch Edge HMI server machine.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
aveva	edge	—	—
aveva	indusoft_web_studio	—	—
aveva	indusoft_web_studio	—	—
aveva	indusoft_web_studio	—	—
aveva	indusoft_web_studio	—	—
aveva	intouch_machine_edition_2014	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Trigger condition: exploit occurs during tag, alarm, or event related actions such as read and write over the remote communication channel — monitor for malformed/oversized packets to InduSoft Web Studio / InTouch Edge HMI listener ports during these operations ↗
→Secondary attack vector: if remote communication security is disabled or password is blank, a crafted packet can invoke an arbitrary process — alert on process spawning from InduSoft Web Studio or InTouch Edge HMI runtime processes, especially when no authentication is configured ↗
→Privilege context: any code execution will run under the InduSoft Web Studio or InTouch Edge HMI runtime account — monitor that process for anomalous child process creation or outbound network connections ↗

·Exploitation is significantly easier (arbitrary process invocation possible) when remote communication security is not enabled or the project password is left blank — verify security is enabled and passwords are non-empty in all deployments ↗
·No known public exploits were available at time of advisory publication, reducing immediate mass-exploitation risk but not eliminating targeted attack risk ↗
·Affected version scope: InduSoft Web Studio versions prior to 8.1 SP2 and InTouch Edge HMI versions prior to 2017 SP2 — use version fingerprinting to identify unpatched assets on the network ↗

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

Stop checking back — get the weekly exploitation signal.

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.