PT-2021-20167 · Openplc · Openplc

Fellipe Oliveira · Published 2021-08-02 · Updated 2021-08-09 · CVE-2021-3351

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions OpenPLC runtime versions V3 through 2016-03-14

Description The issue allows stored XSS via the Device Name to the web server's "Add New Device" page. This can lead to malicious script execution when the page is accessed.

Recommendations For OpenPLC runtime versions V3 through 2016-03-14, consider restricting access to the "Add New Device" page until a fix is available. As a temporary workaround, avoid using the Device Name field in the web server's Add New Device page to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-3351

Affected Products

Openplc

References · 5

• 🔥 https://youtube.com/watch?v=eSAqXq4m8so · Exploit
• https://osv.dev/vulnerability/CVE-2021-3351 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3351 · Security Note
• https://t.me/cibsecurity/26648 · Telegram Post
• https://t.me/cvenotify/18441 · Telegram Post