7.8
CWE
787 122
Advisory Published
Updated
Advisory Published

CVE-2021-34326: 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-13422)

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow 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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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2021-34326.

  • What is the title of the vulnerability?

    The title of the vulnerability is Siemens JT2Go PAR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability.

  • How does this vulnerability allow attackers to execute arbitrary code?

    This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens JT2Go.

  • What is required for the vulnerability to be exploited?

    User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

  • What is the severity of CVE-2021-34326?

    The severity of CVE-2021-34326 is high with a CVSS score of 7.8.

  • What software are affected by this vulnerability?

    Siemens JT2Go, Siemens Solid Edge, and Siemens Teamcenter Visualization versions up to 13.2.0 and se2021 with maintenance packs 1, 2, 3, and 4 are affected.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability at the following references: [US-CERT](https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15), [Siemens Product Cert](https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf), [Zero Day Initiative](https://www.zerodayinitiative.com/advisories/ZDI-21-864/).

  • What are the Common Weakness Enumerations (CWEs) associated with this vulnerability?

    The Common Weakness Enumerations (CWEs) associated with this vulnerability are CWE-787 and CWE-122.

Contact

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