FSA-202304
Vulnerability from csaf_festosecokg - Published: 2023-09-05 10:00 - Updated: 2025-10-01 10:00Summary
Festo: MSE6-C2M/D2M/E2M Incomplete User Documentation of Remote Accessible Functions
Notes
Summary: Incomplete user documentation of undocumented, authenticated test mode and further remote accessible functions.
The supported features may be covered only partly by the corresponding user documentation.
Festo developed the products according to the respective state of the art. As a result, the protocols used no longer fully meet today's security requirements.
The products are designed and developed for use in sealed-off (industrial) networks.
If the network is not adequately sealed off, unauthorized access to the product can cause damage or malfunctions, particularly Denial of Service (DoS) or loss of integrity.
Impact: In products of the MSE6 product-family by Festo a remote authenticated attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.
Remediation: Update of user documentation in next product version.
General recommendations: Users running communication over an untrusted network who require full protection should switch to an alternative solution such as running the communication over a VPN.
Festo strongly recommends to minimize and protect network access to connected devices with state of the art techniques and processes.
As part of a security strategy, Festo recommends the following general defense measures to reduce the risk of exploits:
- Use devices only in a protected environment to minimize network exposure and ensure that they are not accessible from outside
- Use firewalls to protect and separate the control system network from other networks - Use VPN (Virtual Private Networks) tunnels if remote access is required
- Activate and apply user management and password features
- Use encrypted communication links
- Limit the access to both development and control system by physical means, operating system features, etc.
- Protect both development and control system by using up to date virus detecting solutions
Disclaimer: Festo assumes no liability whatsoever for indirect, collateral, accidental or consequential losses that occur by the distribution and/or use of this document or any losses in connection with the distribution and/or use of this document. All information published in this document is provided free of charge and on good faith by Festo. Insofar as permissible by law, however, none of this information shall establish any warranty, guarantee, commitment, or liability on the part of Festo.\n\nNote: In no case does this information release the operator or responsible person from the obligation to check the effect on his system or installation before using the information and, in the event of negative consequences, not to use the information.\n\nIn addition, the actual general terms, and conditions for delivery, payment and software use of Festo, available under http://www.festo.com and the special provisions for the use of Festo Security Advisory available at https://www.festo.com/psirt shall apply.
In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.
8.8 (High)
Vendor Fix
Update of user documentation in next product version.
References
| URL | Category | |
|---|---|---|
Acknowledgments
CERT@VDE
certvde.com
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"url": "https://certvde.com/en/advisories/VDE-2023-020/"
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{
"category": "self",
"summary": "FSA-202304: Festo: MSE6-C2M/D2M/E2M Incomplete User Documentation of Remote Accessible Functions - CSAF",
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],
"product_groups": [
{
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"product_ids": [
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"CSAFPID-11002",
"CSAFPID-11003",
"CSAFPID-11004",
"CSAFPID-11005",
"CSAFPID-11006",
"CSAFPID-11007",
"CSAFPID-11008",
"CSAFPID-11009",
"CSAFPID-11010",
"CSAFPID-11011",
"CSAFPID-11012"
],
"summary": "Affected products."
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2023-3634",
"cwe": {
"id": "CWE-912",
"name": "Hidden Functionality"
},
"notes": [
{
"category": "description",
"text": "In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.",
"title": "Vulnerability Description"
}
],
"product_status": {
"known_affected": [
"CSAFPID-11001",
"CSAFPID-11002",
"CSAFPID-11003",
"CSAFPID-11004",
"CSAFPID-11005",
"CSAFPID-11006",
"CSAFPID-11007",
"CSAFPID-11008",
"CSAFPID-11009",
"CSAFPID-11010",
"CSAFPID-11011",
"CSAFPID-11012"
]
},
"remediations": [
{
"category": "vendor_fix",
"details": "Update of user documentation in next product version.",
"group_ids": [
"CSAFGID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 8.8,
"environmentalSeverity": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 8.8,
"temporalSeverity": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-11001",
"CSAFPID-11002",
"CSAFPID-11003",
"CSAFPID-11004",
"CSAFPID-11005",
"CSAFPID-11006",
"CSAFPID-11007",
"CSAFPID-11008",
"CSAFPID-11009",
"CSAFPID-11010",
"CSAFPID-11011",
"CSAFPID-11012"
]
}
],
"title": "CVE-2023-3634"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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