#VU19013 Input validation error in ABB products - CVE-2019-7228

Vulnerability identifier: #VU19013

Vulnerability risk: Medium

CVSSv4.0: 7.4 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2019-7228

CWE-ID: CWE-134

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
BSP UN31
Server applications / SCADA systems
BSP UN30
Server applications / SCADA systems
PB610 Panel Builder 600
Server applications / SCADA systems

Vendor: ABB

Description

The vulnerability allows an attacker to bypass authentication or execute code on the server.

The vulnerability exists due to the IDAL HTTP server is vulnerable to memory corruption through insecure use of user supplied format strings. An attacker can abuse this functionality to bypass authentication or execute code on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BSP UN31: before 2.31

BSP UN30: before 2.31

PB610 Panel Builder 600: 1.91 - 2.8.0.367

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External links
https://search-ext.abb.com/library/Download.aspx?DocumentID=3ADR010377&LanguageCode=en&a...
https://www.us-cert.gov/ics/advisories/icsa-19-178-01

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

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.