CVE-2021-25173: Siemens JT2Go DGN File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
An issue was discovered in Open Design Alliance Drawings SDK before 2021.12. A memory allocation with excessive size vulnerability exists when reading malformed DGN files, which allows attackers to cause a crash, potentially enabling denial of service (crash, exit, or restart).
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens JT2Go. 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 DGN files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-25173?
CVE-2021-25173 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Siemens JT2Go.
How can an attacker exploit CVE-2021-25173?
An attacker can exploit CVE-2021-25173 by tricking the target into visiting a malicious page or opening a malicious file.
Which software versions are affected by CVE-2021-25173?
Siemens JT2Go versions up to 13.1.0.1 are affected by CVE-2021-25173.
What is the severity of CVE-2021-25173?
CVE-2021-25173 has a severity rating of 7.8 (high).
Where can I find more information about CVE-2021-25173?
You can find more information about CVE-2021-25173 at the following references: [US-CERT Advisory](https://us-cert.cisa.gov/ics/advisories/icsa-21-040-06), [ZDI Advisory](https://www.zerodayinitiative.com/advisories/ZDI-21-225/), [Siemens CERT Advisory](https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf)