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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
65.3%
**ATTENTION:**Remotely exploitable/low skill level to exploit
Vendor: Hanwha Techwin
Equipment: SRN-4000
**Vulnerability:**Unauthenticated Access
The following versions of SRN-4000, a network video management platform, are affected:
Successful exploitation of this vulnerability could allow the attacker remote access to the web management portal with admin privileges without authentication.
Hanwha Techwin recommends that users update to firmware Version SRN4000_v2.16_170401.zip or newer.
The latest firmware version can be obtained from the following location:
https://www.hanwha-security.com/
(Products > Video Recorders > SRN-4000 > Download > Firmware)
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
ICS-CERT 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 ICSβCERT 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 ICS-CERT for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
A specially crafted http request and response could allow an attacker to gain access to the device management page with admin privileges without proper authentication.
CVE-2017-7912 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).
Can Demirel and Faruk Unal of Biznet Bilisim discovered the vulnerability and have tested the patch.
Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy, Water and Wastewater Systems.
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Seoul, South Korea
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7912
cwe.mitre.org/data/definitions/284.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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mailto:?subject=Hanwha%20Techwin%20SRN-4000&body=www.cisa.gov/news-events/ics-advisories/icsa-17-136-03
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
9.8 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
65.3%