CVE-2021-34329: Siemens JT2Go PAR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
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)
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 PAR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Affected Software
Event History
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/).