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             AUSCERT External Security Bulletin Redistribution

          Sinapsi eSolar Light Plaintext Passwords Vulnerability
                               11 June 2015


        AusCERT Security Bulletin Summary

Product:           Sinapsi eSolar Light
Publisher:         US-CERT
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-3949  

Original Bulletin: 

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Advisory (ICSA-15-160-02)

Sinapsi eSolar Light Plaintext Passwords Vulnerability

Original release date: June 09, 2015

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Independent researcher Maxim Rupp has identified plain text passwords in 
Sinapsis eSolar Light application. Sinapsi has produced a new version to 
mitigate this vulnerability.


The following Sinapsi eSolar Light versions are affected:

    Sinapsi eSolar Light firmware versions prior to 2.0.3970_schsl_2.2.85.


Access to the plaintext passwords will compromise the confidentiality and 
integrity of the mail client.

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


Sinapsi is an Italy-based company.

The affected product, Sinapsi eSolar Light, is a stand-alone system for the 
monitoring and management of local and remote maintenance of small size 
photovoltaic (PV) plants. According to Schneider Electric, Sinapsi eSolar 
Light is deployed across several sectors including Commercial Facilities, 
Critical Manufacturing, Energy, Water and Wastewater Systems, and others. 
Sinapsi estimates that these products are used worldwide.




An attacker is able to view saved passwords from the DNS and mail 
configuration by viewing the mail configuration page source.

CVE-2015-3949 [b] has been assigned to this vulnerability. A CVSS v2 base 
score of 7.2 has been assigned; the CVSS vector string is 
(AV:L/AC:L/Au:N/C:C/I:C/A:C). [c]



This vulnerability is not exploitable remotely and cannot be exploited without
user interaction. The exploit is only triggered when a local user accesses the
mail configuration option.


No known public exploits specifically target this vulnerability.


An attacker with a low skill would be able to exploit this vulnerability.


Sinapsi has developed a fix for the problem in firmware version 
2.0.3970_schsl_2.2.85. Contact Sinapsi through its web site for support in 
obtaining this firmware.

ICS-CERT recommends that users take defensive measures to minimize the risk of
exploitation of this vulnerability by ensuring the firmware version is up to 

Suggestions for additional mitigation solutions besides updating the firmware

    Limit access to the system to those who need access.

    Change passwords frequently.

    Isolate PCs from other functions.

    Ensure physical security is in place, so that someone cannot just walk in
    and steal your passwords.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT also provides a section for control systems security recommended 
practices on the ICS-CERT web page at: 
http://ics-cert.us-cert.gov/content/recommended-practices. Several recommended
practices are available for reading and download, including Improving 
Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly 
available in the ICSCERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site 

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to ICS-CERT for 
tracking and correlation against other incidents.

a. CWE-256: Plain Text Storage of a Password, 
http://cwe.mitre.org/data/definitions/256.html, web site last accessed June 
09, 2015.

b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-3949, 
NIST uses this advisory to create the CVE web site report. This web site will
be active sometime after publication of this advisory.

c. CVSS Calculator, 
http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:L/AC:L/Au:N/C:C/I:C/A:C, web
site last accessed June 09, 2015.

Contact Information

For any questions related to this report, please contact ICS-CERT at:

Email: ics-cert@hq.dhs.gov

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

For industrial control systems security information and incident reporting: 

ICS-CERT continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 

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