CVE-2020-6656

Summary

Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. The vulnerability arises due to improper validation of user data supplied through E70 file which is causing Type Confusion.

Affected Software

Weaknesses

• CWE-843: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
• CWE-20: CWE-20 Improper Input Validation

Workarounds

Do not upload the E70 file from an untrusted source.

ADP Enrichment

CVE Program Container

Additional References

• https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdf
• https://www.zerodayinitiative.com/advisories/ZDI-20-1441/
• https://www.zerodayinitiative.com/advisories/ZDI-20-1442/
• https://www.zerodayinitiative.com/advisories/ZDI-20-1444/
• https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03

References

• https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdf
• https://www.zerodayinitiative.com/advisories/ZDI-20-1441/
• https://www.zerodayinitiative.com/advisories/ZDI-20-1442/
• https://www.zerodayinitiative.com/advisories/ZDI-20-1444/
• https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03

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