Stack-based buffer overflow in AVEVA IEC870IP driver for Vijeo Citect and Citect SCADA

1) Stack-based buffer overflow

EUVDB-ID: #VU21935

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-13537

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause a server-side crash.

The vulnerability exists due to a boundary error in the IEC870IP driver. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a server-side crash on the target system.

Note: This vulnerability affects only the IEC870IP driver used in Vijeo Citect and Citect SCADA.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IEC870IP: 4.14.02

External links

http://ics-cert.us-cert.gov/advisories/icsa-19-290-01
http://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec139.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.