SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-998765453] ABB PCM600 Vulnerabilities

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2016-05-31OPCABB PCM600Ilya KarpovN/A2016-4511, 2016-4516, 2016-4524, 2016-4527N/AN/AN/A

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# ABB PCM600 Vulnerabilities
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### OVERVIEW

ABB has identified one use of password hash with insufficient computational effort and three insufficiently protected credentials vulnerabilities in ABB's PCM600. These vulnerabilities were reported directly to ABB by Ilya Karpov from Positive Technologies. ABB has produced a new version to mitigate these vulnerabilities.





### AFFECTED PRODUCTS

ABB reports that the vulnerabilities affect the following products:

PCM600 up to and including Version 2.6






### IMPACT

An attacker who successfully exploits these vulnerabilities could edit the main application or gain access to PCM600 or connected devices.
Impact to individual organizations depends on many factors that are unique to each organization.






### BACKGROUND

ABB is a Switzerland-based company that maintains offices in several countries around the world.
The affected product, PCM600, is a protection and control IED manager. According to ABB, PCM600s are deployed in the Energy sector. ABB estimates that this product is used worldwide.





### VULNERABILITY CHARACTERIZATION


# VULNERABILITY OVERVIEW

USE OF PASSWORD HASH WITH INSUFFICIENT COMPUTATIONAL EFFORT

The main application password in the ACTConfig configuration file is hashed with a weak hashing function. In order to exploit the vulnerability, the attacker needs to have local access to the PC running PCM600.
CVE-2016-4511 has been assigned to this vulnerability. A CVSS v3 base score of 2.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N).



INSUFFICIENTLY PROTECTED CREDEN

The main application password is stored insecurely after being changed. In order to exploit the vulnerability, the attacker needs to have local access to the PC running PCM600.
CVE-2016-4516 has been assigned to this vulnerability. A CVSS v3 base score of 2.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N).



INSUFFICIENTLY PROTECTED CREDENTIALS

OPC Server IEC61850 authentication passwords are temporarily stored insecurely. In order to exploit the vulnerability, the attacker needs to have local access to the PC running PCM600.
CVE-2016-4524 has been assigned to this vulnerability. A CVSS v3 base score of 4.6 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:L).



INSUFFICIENTLY PROTECTED CREDENTIALS

PCM600 authentication credentials are stored insecurely. In order to exploit the vulnerability, the attacker needs to have local access to the PC running PCM600. The access control in PCM600 needs to be active.
CVE-2016-4527 has been assigned to this vulnerability. A CVSS v3 base score of 2.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N).






### VULNERABILITY DETAILS


# EXPLOITABILITY

These vulnerabilities are not exploitable remotely and cannot be exploited without user interaction.


# EXISTENCE OF EXPLOIT

No known public exploits specifically target these vulnerabilities.


# DIFFICULTY

An attacker with a low skill would be able to exploit these vulnerabilities.





### MITIGATION

ABB has corrected the problems in PCM600 Version 2.7. ABB recommends that users apply the update at earliest convenience.

ABB recommends using the following security practices and firewall configurations to help protect process control networks from attacks that originate from outside the network.

* Physically protect control systems from direct access by unauthorized personnel.
* Do not allow direct connections from control systems to the Internet. 
* Separate control systems from other networks by deploying a firewall that has a minimal number of ports exposed.
* Do not use process control systems for Internet surfing, instant messaging, or receiving emails.
* Carefully scan portable computers and removable storage media for viruses before they are connected to a control system.

ABB provides more information on recommended practices in 1MRS758440, Protection and Control IED Manager PCM600 Cyber Security Deployment Guideline, which can be found at the following location:

http://search.abb.com/library/Download.aspx?DocumentID=1MRS758440&Action=Launch