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
66.3%
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Advantech
Equipment: WebAccess
Vulnerabilities: Authentication Bypass, SQL Injection
The following WebAccess version is affected:
Successful exploitation of this authentication bypass vulnerability could allow an attacker to access pages unrestricted; SQL injection condition may allow remote code execution.
Advantech has produced WebAccess Version 8.2 that mitigates these vulnerabilities. The new version can be downloaded at http://www.advantech.com/industrial-automation/webaccess.
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.
No known public exploits specifically target this vulnerability.
To be able to exploit the SQL injection vulnerability, an attacker must supply malformed input to the WebAccess software. Successful attack could result in administrative access to the application and its data files.
CVE-2017-5154 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).
By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access pages unrestricted.
CVE-2017-5152 has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Tenable Network Security working with Trend Microβs Zero Day Initiative
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5152
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5154
cwe.mitre.org/data/definitions/592.html
cwe.mitre.org/data/definitions/89.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Advantech%20WebAccess+https://www.cisa.gov/news-events/ics-advisories/icsa-17-012-01
urldefense.proofpoint.com/v2/url?u=http-3A__www.advantech.com_industrial-2Dautomation_webaccess&d=DQMGaQ&c=54IZrppPQZKX9mLzcGdPfFD1hxrcB__aEkJFOKJFd00&r=uwyZa8MpvYuELzcbQo3O8w&m=B1NbjjB3HvkL8cRddR7Wjad3cVM_jG_llwiSN6PSdak&s=E0QUbGEoBOGdcHbiGNlYgf9-lEDJpzXH7QL3F94YtUs&e=
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
www.instagram.com/cisagov
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www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-17-012-01
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Advantech%20WebAccess&body=www.cisa.gov/news-events/ics-advisories/icsa-17-012-01
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
66.3%