CVE-2021-42698

Summary

Project files are stored memory objects in the form of binary serialized data that can later be read and deserialized again to instantiate the original objects in memory. Malicious manipulation of these files may allow an attacker to corrupt memory.

Affected Software

Weaknesses

• CWE-502: CWE-502 Deserialization of Untrusted Data

Workarounds

Users are discouraged from using documents from unknown/untrusted sources. Users are encouraged to store .ctl files in a folder only writeable by admin-level users. Users are encouraged to operate in “Safe Mode” when loading documents that have been out of their control. Users are encouraged to apply a document editing password to their documents. Users should avoid using the Real Time Web-Connect menu items and instead connect to DAQConnect using script.

ADP Enrichment

CVE Program Container

Additional References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-308-02

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-308-02

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