Advisory Details

August 5th, 2019

Fuji Electric FRENIC Loader FN1 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-19-690
ZDI-CAN-7921

CVE ID CVE-2019-13512
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Fuji Electric
AFFECTED PRODUCTS FRENIC Loader
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Fuji Electric FRENIC Loader. 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 FN1 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

ADDITIONAL DETAILS Fuji Electric has issued an update to correct this vulnerability. More details can be found at:
https://www.us-cert.gov/ics/advisories/icsa-19-213-02
DISCLOSURE TIMELINE
  • 2019-03-06 - Vulnerability reported to vendor
  • 2019-08-05 - Coordinated public release of advisory
CREDIT kimiya of 9SG Security Team - kimiya@9sgsec.com
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