Out-of-bounds read in VTScada

1) Out-of-bounds read

EUVDB-ID: #VU96

Risk: Critical

CVSSv3.1: 9.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2016-4523

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists within the handling of Wireless Application Protocol requests. A remote unauthenticated attacker can cause the software to be read outside the intended buffer, which may lead to a crash.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Trihedral Engineering Ltd. has created an updated software version 11.2.02, available at:

ftp://ftp.trihedral.com/VTS/

Vulnerable software versions

VTScada: 9 - 11.1

External links

http://ics-cert.us-cert.gov/advisories/ICSA-16-159-01

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.