CVE-2021-32944: Siemens JT2Go DGN File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Thu Jun 17 2021(Updated: )
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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens JT2Go | ||
| Opendesign Drawings Sdk | <2022.4 | |
| Siemens COMOS | <10.4.1 | |
| Siemens JT2Go | <13.2.0.1 | |
| Siemens Teamcenter Visualization | <13.2.0.1 |
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Reference Links
- https://us-cert.cisa.gov/ics/advisories/icsa-21-222-01
- https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-21-987/
- https://www.zerodayinitiative.com/advisories/ZDI-21-990/
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
Frequently Asked Questions
What is CVE-2021-32944?
CVE-2021-32944 is a vulnerability that allows remote attackers to execute arbitrary code on Siemens JT2Go.
How can the CVE-2021-32944 vulnerability be exploited?
The CVE-2021-32944 vulnerability can be exploited through user interaction, such as visiting a malicious page or opening a malicious file.
What software is affected by CVE-2021-32944?
Siemens JT2Go, Opendesign Drawings Sdk, Siemens COMOS, and Siemens Teamcenter Visualization are affected by CVE-2021-32944.
What is the severity of CVE-2021-32944?
CVE-2021-32944 has a severity rating of 7.8 (high).
Is there a fix available for CVE-2021-32944?
Yes, Siemens has released security advisories and patches to address the CVE-2021-32944 vulnerability.
- collector/zdi-advisory
- alias/ZDI-21-987
- alias/ZDI-CAN-13413
- alias/CVE-2021-32944
- alias/ZDI-21-990
- alias/ZDI-CAN-13468
- collector/nvd-index
- vendor/siemens
- canonical/siemens jt2go
- vendor/opendesign
- canonical/opendesign drawings sdk
- canonical/siemens comos
- canonical/siemens teamcenter visualization