Delta CNCSoft ScreenEditor DPB File Parsing OOB Read Info Disclosure (CVE-2020-16201)

Advisory Details Date: August 5th, 2020 Title: Delta Industrial Automation CNCSoft ScreenEditor DPB File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability ID: ZDI-20-945 ZDI-CAN-10885 CVE ID: CVE-2020-16201 CVSS Score: 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Affected Vendors: Delta Industrial Automation Affected Products: CNCSoft ScreenEditor Vulnerability Details: This vulnerability allows remote attackers to disclose sensitive information on affected installations of Delta Industrial Automation CNCSoft ScreenEditor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DPB files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Additional Details: Delta Industrial Automation has issued an update to correct this vulnerability. More details can be found at: https://us-cert.cisa.gov/ics/advisories/icsa-20-217-01 Disclosure Timeline: 2020-04-23 - Vulnerability reported to vendor 2020-08-05 - Coordinated public release of advisory Credit: Anonymous

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Delta CNCSoft ScreenEditor DPB File Parsing OOB Read Info Disclosure (CVE-2020-16201)