Advisory Details

April 5th, 2022

Rockwell Automation Connected Components Workbench ccwsln File Parsing XML External Entity Processing Information Disclosure Vulnerability

ZDI-22-585
ZDI-CAN-15179

CVE ID
CVSS SCORE 5.5, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
AFFECTED VENDORS Rockwell Automation
AFFECTED PRODUCTS Connected Components Workbench
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Rockwell Automation Connected Components Workbench. 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 processing of ccwsln 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.

ADDITIONAL DETAILS Rockwell Automation has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/uscert/ics/advisories/icsa-22-088-01
DISCLOSURE TIMELINE
  • 2021-11-19 - Vulnerability reported to vendor
  • 2022-04-05 - Coordinated public release of advisory
CREDIT kimiya
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