4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.0%
CVSS v3 6.1
ATTENTION: Exploitable remotely/low skill level to exploit
**Vendor:**GEOVAP
**Equipment:**Reliance 4 SCADA/HMI
**Vulnerability:**Cross-site Scripting
Successful exploitation of this vulnerability could allow an unauthenticated attacker to use HTTP proxy to inject arbitrary Javascript in a specially crafted HTTP request that may reflect it back in the HTTP response.
The following versions of Reliance 4 SCADA/HMI, a SCADA/HMI system designed for the monitoring and control of industrial processes and for building automation, are affected:
3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION (‘CROSS-SITE SCRIPTING’) CWE-79
This vulnerability could allow an unauthorized attacker to inject arbitrary code.
CVE-2018-17904 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
Ismail Mert AY AK reported this vulnerability to NCCIC.
GEOVAP released Version 4.8.0, which mitigates the vulnerability. GEOVAP strongly recommends users upgrade existing projects to this version. It can be downloaded here:
GEOVAP also recommends users switch the application to HTTPS to prevent the manipulation of HTTP messages in an HTTP proxy. Changing to HTTPS should help even if Version 4.7.3 Update 3 and prior are still used.
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
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.
NCCIC also recommends that users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target this vulnerability.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17904
cwe.mitre.org/data/definitions/79.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=GEOVAP%20Reliance%204%20SCADA/HMI+https://www.cisa.gov/news-events/ics-advisories/icsa-18-298-01
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-18-298-01&title=GEOVAP%20Reliance%204%20SCADA/HMI
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-18-298-01
www.oig.dhs.gov/
www.reliance-scada.com/en/support/articles/technical/what-is-new-in-reliance480#securitylevel
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-18-298-01
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=GEOVAP%20Reliance%204%20SCADA/HMI&body=www.cisa.gov/news-events/ics-advisories/icsa-18-298-01
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.0%