SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-946020423] Eaton ELCSoft Programming Software Memory Vulnerabilities

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2016-06-30SOFTWAREELCSoft Ariele CalgavianoN/A2016-4509, 2016-4512N/AN/AN/A

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# Eaton ELCSoft Programming Software Memory Vulnerabilities
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### OVERVIEW

Ariele Calgaviano working with Zero Day Initiative has identified a heap-based memory corruption vulnerability and a stack buffer overflow vulnerability in Eaton's ELCSoft programming software. Eaton has released a revision to mitigate these vulnerabilities.

These vulnerabilities could be exploited remotely.




### AFFECTED PRODUCTS

The following ELCSoft programming software versions are affected:
ELCSoft Version 2.4.01 and earlier.






### IMPACT

An attacker may be able to exploit these vulnerabilities to execute arbitrary code on the target system.

Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation.






### BACKGROUND

Eaton is a US-based company that maintains offices worldwide.

The affected product, ELCSoft programming software, is used to configure all Eaton ELC programmable logic controllers deployed by power grid operators to apply protection and communications support for overcurrent devices such as reclosers and circuit breakers. According to Eaton, this product is used primarily in the Energy sector. Eaton estimates this product is used worldwide. While the ELC controllers themselves do not exhibit this vulnerability, the PCs used to configure the logic in the ELC exhibit this vulnerability when running the ELCSoft editor.





### VULNERABILITY CHARACTERIZATION


# VULNERABILITY OVERVIEW

HEAP-BASED BUFFER OVERFLOW

A proof-of-concept file can be run after page heap is turned on for elcsoft.exe.
CVE-2016-4509 has been assigned to this vulnerability. A CVSS v3 base score of 6.0 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L).



STACK-BASED BUFFER OVERFLOW

The ELCSimulator copies the input network packet into a fixed size stack buffer without checking if it will fit.
CVE-2016-4512 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).




### VULNERABILITY DETAILS


# EXPLOITABILITY

These vulnerabilities could be exploited remotely.


# 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

Eaton has released a revision that mitigates these vulnerabilities. The revision can be downloaded at:
https://eatonfilesharing.box.com/s/r4ulykfay2x5nlai9pqijivdh1zyks98

Eaton states the current firmware needs to be uninstalled prior to loading the update.