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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
51.4%
Successful exploitation of these vulnerabilities may allow an attacker to disclose confidential data under certain circumstances.
Siemens reports these vulnerabilities affect the following Mendix SAML Modules:
The affected module is vulnerable to XML external entity (XXE) attacks due to insufficient input sanitation. This may allow an attacker to disclose confidential data under certain circumstances.
CVE-2022-32285 has been assigned to this vulnerability. A CVSS v3 base score of 8.3 has been calculated, the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L).
In certain configurations the SAML module is vulnerable to cross-site scripting (XSS) attacks due to insufficient error message sanitation. This could allow an attacker to execute malicious code by tricking users into accessing a malicious link.
CVE-2022-32286 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated, the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N).
Siemens reported these vulnerabilities to CISA.
Mendix has released an update for the Mendix SAML module and recommends updating to the latest versions:
As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemensβ operational guidelines for industrial security and following recommendations in the product manuals.
Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage.
For additional information, please refer to Siemens Security Advisory SSA-740594:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics 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 webpage on cisa.gov/ics in the Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target these vulnerabilities.
cert-portal.siemens.com/productcert/csaf/ssa-740594.json
cert-portal.siemens.com/productcert/pdf/ssa-740594.pdf
cert-portal.siemens.com/productcert/txt/ssa-740594.txt
cisa.gov/ics
cisa.gov/ics
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-22-167-04
cwe.mitre.org/data/definitions/611.html
cwe.mitre.org/data/definitions/611.html
cwe.mitre.org/data/definitions/79.html
marketplace.mendix.com/link/component/1174/
marketplace.mendix.com/link/component/1174/
marketplace.mendix.com/link/component/1174/
nvd.nist.gov/vuln/detail/CVE-2022-32286
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Siemens%20Mendix%20SAML%20Module+https://www.cisa.gov/news-events/ics-advisories/icsa-22-167-04
www.cisa.gov/uscert/ics/recommended-practices
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
www.instagram.com/cisagov
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www.oig.dhs.gov/
www.siemens.com/cert/operational-guidelines-industrial-security
www.siemens.com/industrialsecurity
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Siemens%20Mendix%20SAML%20Module&body=www.cisa.gov/news-events/ics-advisories/icsa-22-167-04
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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
51.4%