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
0.36 Low
EPSS
Percentile
97.2%
**ATTENTION:**Remotely exploitable/low skill level to exploit. Public exploits are available.
Vendor: Dahua Technology Co., Ltd
Equipment: Digital Video Recorders and IP Cameras
Vulnerabilities: Use of Password Hash Instead of Password for Authentication, Password in Configuration File
The following Dahua Technology Co., Ltd (Dahua) network cameras are affected:
The following Dahua Digital Video Recorders (DVRs) are affected:
Successful exploitation of these vulnerabilities could allow the attacker to obtain user credentials, including password hashes, and use these credentials to bypass authentication.
Dahua has released updated firmware to mitigate these vulnerabilities.
Updated software can be obtained from Dahua technical support or an authorized Dahua distributor.
In addition, Dahua released the following security notifications for users:
Dahuaβs original notification specifies 11 affected models, but after initial testing, Dahua has identified additional series and models in the following security notification:
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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.
The use of password hash instead of password for authentication vulnerability was identified, which could allow a malicious user to bypass authentication without obtaining the actual password.
CVE-2017-7927 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
The password in configuration file vulnerability was identified, which could lead to a malicious user assuming the identity of a privileged user and gaining access to sensitive information.
CVE-2017-7925 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).
Researcher Bashis disclosed these vulnerabilities without coordination with ICS-CERT.
**Critical Infrastructure Sector(s):**Commercial Facilities, Critical Manufacturing, Financial, Government Facilities, and Transportation Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: China
us.dahuasecurity.com/en/us/Security-Bulletin_030617.php
us.dahuasecurity.com/en/us/Security-Bulletin_04032017.php
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7925
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7927
www.dahuasecurity.com/en/us/single.php?nid=354
www.dahuasecurity.com/en/us/single.php?nid=364
www1.dahuasecurity.com/annoucementsingle/security-notification-dhcc-201703-01-112.html
cwe.mitre.org/data/definitions/260.html
cwe.mitre.org/data/definitions/836.html
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mailto:?subject=Dahua%20Technology%20Co.%2C%20Ltd%20Digital%20Video%20Recorders%20and%20IP%20Cameras&body=www.cisa.gov/news-events/ics-advisories/icsa-17-124-02
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
0.36 Low
EPSS
Percentile
97.2%