Vulnerability · Published Sep 9, 2020 · Assigned by siemens

CVE-2020-15787

Critical 9.8

In plain English

A critical-severity security flaw in SIMATIC HMI Unified Comfort Panels from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)1.5%top 26.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.

Affected products (as reported)

Vendor	Product	Versions
Siemens	SIMATIC HMI Unified Comfort Panels	All versions <= V16

Weakness: CWE-305

References

https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf x_refsource_MISC