A vulnerability has been identified in DIGSI 4 (All versions < V4.94 SP1 HF 1). Several folders in the %PATH% are writeable by normal users. As these folders are included in the search for dlls, an attacker could place dlls there with code executed by SYSTEM.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-25245
• https://cert-portal.siemens.com/productcert/pdf/ssa-536315.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-040-10