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
9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
0.155 Low
EPSS
Percentile
96.0%
**ATTENTION:**Remotely exploitable/low skill level to exploit.
Vendor: Gemalto
Equipment: Sentinel License Manager
Vulnerability: Null Pointer Dereference, Buffer Overflows, Improper Access Control
The following Sentinel License Manger services are affected:
Successful exploitation of these vulnerabilities could lead to remote code execution or cause a denial-of-service condition, rendering the Sentinel LDK License Manager service unavailable.
Gemalto recommends users who have Sentinel LDK run-time environment (RTE) Version 2.10 through Version 7.54 update to Sentinel LDK RTE component Version 7.6, or the latest version. The update was available as of July 2017 and can be found at the following location:
<https://sentinelcustomer.gemalto.com/sentineldownloads/>
For more information about these vulnerabilities, users can contact customer support at:
<https://supportportal.gemalto.com/csm>
Or visit the vendorβs customer portal at:
http://safenet.gemalto.com/technical-support/security-updates/
<http://sentinel.gemalto.com/technical-support/security-updates-sm/>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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 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 web site.
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.
Language packs (zip files) with invalid HTML files lead to NULL pointer dereferences, which could be exploited by an attacker leveraging malicious HTML files. This could lead to a denial-of-service condition.
CVE-2017-11498 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Language packs containing file names longer than 1,024 characters and malformed ASN.1 streams in input files can lead to a stack-based buffer overflow. This may allow remote code execution.
CVE-2017-11497 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Malformed ASN.1 streams in V2C and similar input files can be used to generate stack-based buffer overflows. This could allow remote code execution.
CVE-2017-11496 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
XML payload with more than supported number of elements leads to buffer overflow of a variable in stack. This vulnerability can be exploited for denial of service.
CVE-2017-12818 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
XML payload with more than supported number of elements leads to buffer overflow of a variable in stack. This vulnerability can be exploited for denial of service or arbitrary code execution.
CVE-2017-12821 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Malformed HTTP request body in Admin APIs can be used to generate heap buffer overflows. This vulnerability can be exploited for denial of service.
CVE-2017-12820 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
License manager web interface is enabled as a default configuration, and even if disabled, it can be re-enabled remotely. This vulnerability can be exploited to perform above mentioned attacks remotely.
CVE-2017-12822 has been assigned to this vulnerability. A CVSS v3 base score of 9.9 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L).
Kaspersky Labs ICS-CERT reported these vulnerabilities to Gemalto CERT and NCCIC.
**Critical Infrastructure Sectors:**Communications, Financial Services, Government Facilities, Healthcare and Public Health, Information Technology
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Netherlands
safenet.gemalto.com/technical-support/security-updates/%20
sentinel.gemalto.com/technical-support/security-updates-sm/
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-11496
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-11497
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-11498
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-12818
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-12820
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-12821
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-12822
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/122.html
cwe.mitre.org/data/definitions/284.html
cwe.mitre.org/data/definitions/476.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
sentinelcustomer.gemalto.com/sentineldownloads/
supportportal.gemalto.com/csm
twitter.com/CISAgov
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mailto:?subject=Gemalto%20Sentinel%20License%20Manager&body=www.cisa.gov/news-events/ics-advisories/icsa-18-032-03
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
9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
0.155 Low
EPSS
Percentile
96.0%