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
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
77.3%
CVSS v3 10.0
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: Natus Medical, Inc. (Natus)
Equipment: Natus Xltek NeuroWorks software
Vulnerabilities: Stack-Based Buffer Overflow, Out-of-Bounds Read
Successful exploitation of these vulnerabilities require access to the Natus customer network, and could crash the device being accessed; a buffer overflow condition may allow remote code execution.
The following version of Natus Xltek NeuroWorks, used in Natus Xltek EEG medical products, are affected:
A specially-crafted packet may be able to cause an out-of-bounds read, which may result in a denial-of-service condition.
CVE-2017-2852 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
An attacker may cause a buffer overflow by sending a specially-crafted packet to the affected product while the product attempts to open a file requested by the client.
CVE-2017-2853 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
A specially-crafted packet may cause an out-of-bounds read, which may result in a denial-of-service condition.
CVE-2017-2858 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
A specially-crafted packet may cause an out-of-bounds read, which may result in a denial-of-service condition.
CVE-2017-2860 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
A specially-crafted packet may cause an out-of-bounds read, which may result in a denial-of-service condition.
CVE-2017-2861 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
A specially-crafted packet received during the execution of certain commands can cause memory to be overwritten in a way that could allow an attacker to take control of the program.
CVE-2017-2867 has been assigned to this vulnerability. A CVSS v3 base score of 9.0 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).
An error in the way the program parses data structures may allow an attacker to take control of the system by sending it a specially-crafted packet.
CVE-2017-2868 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
A specially-crafted packet takes advantage of the way the program parses data structures and may cause a buffer overflow, which may allow remote execution of arbitrary code.
CVE-2017-2869 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Cory Duplantis from Cisco Talos discovered these vulnerabilities and reported them to Natus.
Natus has released NeuroWorks/SleepWorks 8.5 GMA 3, a software update with security enhancements to address the vulnerabilities identified in NeuroWorks/SleepWorks 8.
A free software update to NeuroWorks/SleepWorks 8.5 GMA 3 is available to users using NeuroWorks/SleepWorks Version 8.0, 8.1, 8.4, or 8.5. Contact the Natus Neuro Technical support department at 1-800 387-7516 or email [email protected] for more details.
Natus recommends installing this update as quickly as possible on affected systems.
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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2852
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2853
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2858
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2860
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2861
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2867
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2868
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-2869
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
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cwe.mitre.org/data/definitions/125.html
cwe.mitre.org/data/definitions/125.html
cwe.mitre.org/data/definitions/125.html
cwe.mitre.org/data/definitions/125.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
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
77.3%