Vulnerability · Published Dec 14, 2020 · Assigned by siemens

CVE-2020-25234

High 7.7

In plain English

A high-severity security flaw in LOGO! 8 BM (incl. SIPLUS variants) from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS NVD)7.7High

Exploit odds (30 days)0.3%top 75.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3), LOGO! Soft Comfort (All versions < V8.3). The LOGO! program files generated and used by the affected components offer the possibility to save user-defined functions (UDF) in a password protected way. This protection is implemented in the software that displays the information. An attacker could reverse engineer the UDFs directly from stored program files.

Affected products (as reported)

Vendor	Product	Versions
Siemens	LOGO! 8 BM (incl. SIPLUS variants)	All versions < V8.3
Siemens	LOGO! Soft Comfort	All versions < V8.3

Weakness: CWE-321

References

https://cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf x_refsource_MISC