SB2021072804 - Multiple vulnerabilities in Delta Electronics DIAScreen

Description

This security bulletin contains information about 2 vulnerabilities.

1) Type Confusion (CVE-ID: CVE-2021-32965)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Out-of-bounds write (CVE-ID: CVE-2021-32969)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing XLS files. A remote attacker can trick the victim to open a specially crafted XLS file, trigger an out-of-bounds write and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/icsa-21-208-05
• https://www.zerodayinitiative.com/advisories/ZDI-22-025/
• https://www.zerodayinitiative.com/advisories/ZDI-22-026/
• https://www.zerodayinitiative.com/advisories/ZDI-22-027/
• https://www.zerodayinitiative.com/advisories/ZDI-22-023/
• https://www.zerodayinitiative.com/advisories/ZDI-22-024/