SB2021041520 - Multiple vulnerabilities in Siemens Solid Edge SE2020

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Untrusted Pointer Dereference (CVE-ID: CVE-2020-26997)

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

The vulnerability exists due to untrusted pointer dereference when parsing PAR files. A remote attacker can use a specially crafted file and execute arbitrary code on the targeted system.

2) Out-of-bounds write (CVE-ID: CVE-2021-25678)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when parsing PAR files. A remote attacker can use a specially crafted file, trigger out-of-bounds write and execute arbitrary code on the target system.

3) Stack-based buffer overflow (CVE-ID: CVE-2021-27382)

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

The vulnerability exists due to a boundary error when parsing DTF file. A remote unauthenticated attacker can use a specially crafted file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://cert-portal.siemens.com/productcert/txt/ssa-574442.txt
• https://www.zerodayinitiative.com/advisories/ZDI-21-611/
• https://www.zerodayinitiative.com/advisories/ZDI-21-612/