Stack-based buffer overflow in Yokogawa Exaopc

1) Stack-based buffer overflow

EUVDB-ID: #VU41486

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2014-3888

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error when processing a crafted packet. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Exaopc: 3.71.02

External links

http://ics-cert.us-cert.gov/advisories/ICSA-14-189-01
http://osvdb.org/show/osvdb/108756
http://packetstormsecurity.com/files/127382/Yokogawa-CS3000-BKFSim_vhfd.exe-Buffer-Overflow.html
http://www.exploit-db.com/exploits/34009
http://www.yokogawa.com/dcs/security/ysar/YSAR-14-0002E.pdf

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.