CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
40.0%
**ATTENTION:**Locally exploitable/low skill level to exploit.
Vendor: Schneider Electric
Equipment: IGSS Mobile
Vulnerabilities: Improper Certificate Validation, Plaintext Storage of a Password
Schneider Electric reports that the vulnerabilities affect the following IGSS Mobile products:
Successful exploitation of these vulnerabilities could allow an attacker to execute a man-in-the-middle attack. In addition, passwords can be accessed by unauthorized users.
An update for Android with the fix for these vulnerabilities is available for download on Google Play:
<https://play.google.com/store/apps/details?id=dk.schneiderelectric.igssmobile>
An update for iOS with the fix for these vulnerabilities is available on Apple Store:
<https://itunes.apple.com/dk/app/igss-mobile/id871698051>
For more information on these vulnerabilities and associated patch, please see Schneider Electricβs security notification SEVD-2018-039-02 on their website:
<https://www.schneider-electric.com/en/download/document/SEVD-2018-039-02/>
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. 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 NCCIC Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT website.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.
In addition, NCCIC recommends that users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target these vulnerabilities.
IGSS Mobile app lacks certificate pinning during the TLS/SSL connection establishing process. This issue could allow an attacker to execute a man-in-the-middle attack.
CVE-2017-9968 has been assigned to this vulnerability. A CVSS v3 base score of 6.4 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N).
IGSS Mobile app passwords are stored in clear-text in the configuration file.
CVE-2017-9969 has been assigned to this vulnerability. A CVSS v3 base score of 6.0 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N).
Alexander Bolshev (IOActive) and Ivan Yushkevich (Embedi) reported these vulnerabilities to Schneider Electric.
Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy
Countries/Areas Deployed: Worldwide
Company Headquarters Location: France
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-9968
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-9969
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cwe.mitre.org/data/definitions/256.html
cwe.mitre.org/data/definitions/295.html
itunes.apple.com/dk/app/igss-mobile/id871698051
play.google.com/store/apps/details?id=dk.schneiderelectric.igssmobile
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CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
40.0%