A vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions >= 14 and V < XX), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC HMI Mobile Panels (All versions), SIMATIC HMI United Comfort Panels (All versions). Affected devices insufficiently block excessive authentication attempts. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-15786
• https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf