CVE-2021-27492: (0Day) Siemens Solid Edge Viewer 3DXML File Parsing XML External Entity Processing Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Siemens Solid Edge Viewer. 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 3DXML files. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of the current process.
Other sources
When opening a specially crafted 3DXML file, the application containing Datakit Software libraries CatiaV53dRead, CatiaV63dRead, Step3dRead, Ug3dReadPsr, Jt3dReadPsr modules in KeyShot Versions v10.1 and prior could disclose arbitrary files to remote attackers. This is because of the passing of specially crafted content to the underlying XML parser without taking proper restrictions such as prohibiting an external DTD.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-27492.
What is the severity of CVE-2021-27492?
The severity of CVE-2021-27492 is medium (5.5).
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers who trick the target into visiting a malicious page or opening a malicious file.
Which software is affected by CVE-2021-27492?
Siemens Solid Edge Viewer, Datakit CrossCadWare, and Luxion KeyShot are affected by CVE-2021-27492.
Where can I find more information about CVE-2021-27492?
More information about CVE-2021-27492 can be found at the following references: [Link 1](https://www.zerodayinitiative.com/advisories/ZDI-21-567/), [Link 2](https://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdf), [Link 3](https://us-cert.cisa.gov/ics/advisories/icsa-21-145-01).