security advisory

[ICS] Schneider Electric Wonderware InduSoft Web Studio Privilege Escalation

Schneider Electric Wonderware InduSoft Web Studio Privilege Escalation

Vendor: Schneider Electric
Equipment: Wonderware InduSoft Web Studio
Vulnerability: Incorrect Default Permissions

ICS-CERT Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-138-02

AFFECTED PRODUCTS
The following versions of Schneider Electric’s Wondeware InduSoft Web Studio are affected:

IMPACT
Successful exploitation of this vulnerability could allow an authenticated user to escalate his or her privileges.

VULNERABILITY OVERVIEW
INCORRECT DEFAULT PERMISSIONS CWE-276
Upon installation, Wonderware InduSoft Web Studio creates a new directory and two files, which are placed in the system’s path and can be manipulated by non-administrators. This could allow an authenticated user to escalate his or her privileges.

The directory and files are added to system’s PATH. Therefore, the following can be manipulated by non-administrator users:

 

CVE-2017-7968 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H).

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