Directory traversal vulnerability in the FTP server on Honeywell Excel Web XL1000C50 52 I/O, XL1000C100 104 I/O, XL1000C500 300 I/O, XL1000C1000 600 I/O, XL1000C50U 52 I/O UUKL, XL1000C100U 104 I/O UUKL, XL1000C500U 300 I/O UUKL, and XL1000C1000U 600 I/O UUKL controllers before 2.04.01 allows remote attackers to read files under the web root, and consequently obtain administrative login access, via a crafted pathname.

References

• https://nvd.nist.gov/vuln/detail/CVE-2015-0984
• https://ics-cert.us-cert.gov/advisories/ICSA-15-076-02
• https://www.outpost24.com/hacking-industrial-control-systems-case-study-falcon/
• http://seclists.org/fulldisclosure/2015/Apr/79