CVE-2020-26867

ARC Informatique PcVue prior to version 12.0.17 is vulnerable due to the deserialization of untrusted data, which may allow an attacker to remotely execute arbitrary code on the web and mobile back-end server.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue/
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://www.pcvuesolutions.com/security
• https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue/
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://www.pcvuesolutions.com/security
• https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1