7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.9 High
AI Score
Confidence
High
0.054 Low
EPSS
Percentile
93.2%
CVSS v3 7.8
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: LCDS – Leão Consultoria e Desenvolvimento de Sistemas LTDA ME
Equipment: LAquis SCADA
Vulnerabilities: Untrusted Pointer Dereference, Out-of-Bounds Read, Integer Overflow to Buffer Overflow, Path Traversal, Out-of-bounds Write, and Stack-based Buffer Overflow
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, crash the system, or write controlled content to the target system.
The following versions of LAquis SCADA, an industrial automation software, are affected:
An untrusted pointer dereference vulnerability has been identified, which may allow remote code execution.
CVE-2018-17893 has been assigned to this vulnerability. A CVSS v3 base score of 5.6 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L).
Several out-of-bounds read vulnerabilities have been identified, which may allow remote code execution.
CVE-2018-17895 has been assigned to these vulnerabilities. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
Several integer overflow to buffer overflow vulnerabilities have been identified, which may allow remote code execution.
CVE-2018-17897 has been assigned to these vulnerabilities. A CVSS v3 base score of 5.6 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L).
A path traversal vulnerability has been identified, which may allow remote code execution.
CVE-2018-17899 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L).
When processing project files the application fails to sanitize user input prior to performing write operations on a stack object, which may allow an attacker to execute code under the current process.
CVE-2018-17901 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L).
Several stack-based buffer overflow vulnerabilities have been identified, which may allow remote code execution.
CVE-2018-17911 has been assigned to these vulnerabilities. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Mat Powell of Trend Micro Zero Day Initiative, rgod of 9SG Security Team, Esteban Ruiz (mr_me) of Source Incite, b0nd @garage4hackers, and Ashraf Alharbi (Ha5ha5hin) working with Trend Micro’s Zero Day Initiative reported these vulnerabilities to NCCIC.
LCDS recommends that users update to Version 4.1.0.4114, which can be found at the following location:
<http://laquisscada.com/instale1.php>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
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 on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
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.
No known public exploits specifically target these vulnerabilities.
laquisscada.com/instale1.php
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17893
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17895
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17895
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17895
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17897
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17899
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17901
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17911
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cwe.mitre.org/data/definitions/787.html
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7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.9 High
AI Score
Confidence
High
0.054 Low
EPSS
Percentile
93.2%