CVE-2021-34329: Siemens JT2Go PAR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Tue Jul 13 2021(Updated: )
A vulnerability has been identified in JT2Go (All versions < V13.2), Solid Edge SE2021 (All Versions < SE2021MP5), Teamcenter Visualization (All versions < V13.2). The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13427)
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens JT2Go | <13.2.0 | |
| Siemens Solid Edge | <se2021 | |
| Siemens Solid Edge | =se2021 | |
| Siemens Solid Edge | =se2021-maintenance_pack1 | |
| Siemens Solid Edge | =se2021-maintenance_pack2 | |
| Siemens Solid Edge | =se2021-maintenance_pack3 | |
| Siemens Solid Edge | =se2021-maintenance_pack4 | |
| Siemens Teamcenter Visualization | <13.2.0 | |
| Siemens JT2Go | <13.2 | 13.2 |
| Siemens Teamcenter Visualization | <13.2 | 13.2 |
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Reference Links
- https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15
- https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-21-867/
- https://cert-portal.siemens.com/productcert/pdf/ssa-173615.pdf
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-194-15 (Advisory)
Frequently Asked Questions
What is the vulnerability ID of this Siemens JT2Go vulnerability?
The vulnerability ID is CVE-2021-34329.
What is the severity of CVE-2021-34329?
The severity of CVE-2021-34329 is high with a CVSS score of 7.8.
How does the vulnerability in Siemens JT2Go work?
The vulnerability in Siemens JT2Go is a heap-based buffer overflow that allows remote attackers to execute arbitrary code.
What software versions are affected by CVE-2021-34329?
Siemens JT2Go up to and excluding version 13.2.0 is affected.
Are there any references for more information about CVE-2021-34329?
Yes, you can find more information about CVE-2021-34329 at the following references: US-CERT advisory (https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15), Siemens product cert (https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf), and Zero Day Initiative advisory (https://www.zerodayinitiative.com/advisories/ZDI-21-867/).
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