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28 July 2017
KLCERT-17-003: Sentinel LDK RTE: malformed ASN1 streams in V2C files lead to Remote Code Execution
Vendor
Sentinel
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CVE-IDS
-
KLCERT
KLCERT-17-003
Timeline
Timeline
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Kaspersky ICS CERT advisory published
28 July 2017
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Vendor released private advisory
16 June 2017
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Vulnerability reported
05 December 2016
Description
Malformed ASN1 streams in V2C and similar input files can be used to generate stack buffer overflows. The vulnerability causes an arbitrary code execution.
OVAL definition*
CVSS v3
Exploitability
Remotely
Attack complexity
Low
User interaction
None
Impact
An unauthenticated attacker may be able to exploit vulnerability and execute arbitrary code on remote system.
Existence of exploit
Unknown
Affected products
HASP SRM, Sentinel HASP and Sentinel LDK products, prior to Sentinel LDK RTE 7.55 (hasplms.exe before 19.3.1.66130).
Mitigation
Vendor mitigation
Customers who have Sentinel LDK (RTE) Run-time Environment version (v2.10 – 7.50) are advised to update their Sentinel LDK RTE to the latest Sentinel LDK RTE component (v 7.55) which was released on May 25, 2017. This update can be found on the Sentinel Downloads site.
Kaspersky Lab mitigation
For Industrial Control Systems it is necessary:
- implement network monitoring to detect suspicious behavior on the remote port 1947;
- monitor the suspicious file executions.
Kaspersky Lab publishes information on newly identified vulnerabilities in order to raise user awareness of the IT security threats detected. Kaspersky Lab does not make any guarantees in respect of information received from vendors of products in which vulnerabilities have been identified, which is included in the following sections of the advisory: Affected Products, Vendor Mitigation.
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