September 1, 2017 Karn Ganeshen

[ICS] SpiderControl SCADA Web Server – Directory Traversal Vulnerability

Vendor: SpiderControl
Equipment: SCADA Web Server
Vulnerability: Directory Traversal

ICS-CERT Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-234-03

ZDI Advisory
http://www.zerodayinitiative.com/advisories/ZDI-17-695

AFFECTED PRODUCTS

The following versions of SpiderControl SCADA Web Server, a software management platform, are affected:

BACKGROUND

IMPACT
Successful exploitation of this vulnerability could cause an attacker to gain read access to system files through directory traversal.

VULNERABILITY OVERVIEW

IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY (‘PATH TRAVERSAL’) CWE-22

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of SpiderControl SCADA. Authentication is not required to exploit this vulnerability.

The specific flaw exists within web server access to the scdefault directory. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose files accessible to the SYSTEM account.

CVE-2017-12694 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

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