Summary
B&R PCs vulnerable to PixieFail attack
Notes
Summary
ABB became aware of vulnerability in the product versions listed as affected in the advisory. An update is now available that addresses and remediates the vulnerability.
A network attacker could exploit the vulnerabilities to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information.
Support
For additional instructions and support please contact your local B&R service organization. For contact information, see https://www.br-automation.com/en/about-us/locations/.
Information about ABB’s cyber security program and capabilities can be found at www.abb.com/cybersecurity.
Notice
The information in this document is subject to change without notice, and should not be construed as a commitment by B&R.
B&R provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall B&R or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if B&R or its suppliers have been advised of the possibility of such damages.
This document and parts hereof must not be reproduced or copied without written permission from B&R, and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose.
All rights to registrations and trademarks reside with their respective owners.
General security recommendations
For any installation of software related ABB products we strongly recommend the following (non-exhaustive) list of cyber security practices:
– Isolate special purpose networks (e.g. for automation systems) and remote devices behind firewalls
and separate them from any general purpose network (e.g. office or home networks).
– Install physical controls so no unauthorized personnel can access your devices, components, peripheral equipment, and networks.
– Never connect programming software or computers containing programing software to any network other than the network for the devices that it is intended for.
– Scan all data imported into your environment before use to detect potential malware infections.
– Minimize network exposure for all applications and endpoints to ensure that they are not accessible
from the Internet unless they are designed for such exposure and the intended use requires such.
– Ensure all nodes are always up to date in terms of installed software, operating system, and firmware
patches as well as anti-virus and firewall.
– When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
Purpose
B&R has a rigorous internal cyber security continuous improvement process which involves regular testing with industry leading tools and periodic assessments to identify potential product issues. Occasionally an issue is determined to be a design or coding flaw with implications that may impact product cyber security.
When a potential product vulnerability is identified or reported, B&R immediately initiates our vulnerability handling process. This entails validating if the issue is in fact a product issue, identifying root causes, determining what related products may be impacted, developing a remediation, and notifying end users and governmental organizations.
The resulting Cyber Security Advisory intends to notify customers of the vulnerability and provide details on which products are impacted, how to mitigate the vulnerability or explain workarounds that minimize the potential risk as much as possible. The release of a Cyber Security Advisory should not be misconstrued as an affirmation or indication of an active threat or ongoing campaign targeting the products mentioned here. If B&R is aware of any specific threats, it will be clearly mentioned in the communication.
The publication of this Cyber Security Advisory is an example of B&R’s commitment to the user community in support of this critical topic. Responsible disclosure is an important element in the chain of trust we work to maintain with our many customers. The release of an Advisory provides timely information which is essential to help ensure our customers are fully informed.
Frequently Asked Questions
What is the scope of the vulnerabilities?
- A network attacker who successfully exploited these vulnerabilities to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information. In worst case, these vulnerabilities can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
What causes the vulnerabilities?
- The vulnerabilities are caused by usage of vulnerable UEFI firmware in some B&R xPCs.
What is a B&R xPC?
- A B&R xPC is an industrial PC (IPC) designed for use in industrial environments and is built to handle more demanding conditions than a standard PC. They often feature robust construction, resistance to dust and moisture, extended temperature ranges, and other specifications suited for industrial applications.
What might an attacker use the vulnerabilities to do?
- A network attacker who successfully exploited the vulnerabilities could execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information.
How could an attacker exploit the vulnerabilities?
- An attacker could try to exploit the vulnerabilities by creating a specially crafted message and sending the message to an affected system node. This would require that the attacker has access to the system network, by connecting to the network either directly or through a wrongly configured or penetrated firewall, or that he installs malicious software on a system node or otherwise infects the network with malicious software. Recommended practices help mitigate such attacks, see section Mitigating Factors above.
Could the vulnerabilities be exploited remotely?
- Yes, an attacker who has network access to an affected system node could exploit this vulnerability. Recommended practices include that process control systems are physically protected, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed.
What does the update do?
- The update removes the vulnerabilities in the TCP/IP stack used by the UEFI firmware.
When this security advisory was issued, had these vulnerabilities been publicly disclosed?
- Yes, these vulnerabilities have been publicly disclosed.
When this security advisory was issued, had B&R received any reports that this vulnerability was being exploited on B&R products?
- No, B&R had not received any information indicating that this vulnerability had been exploited on B&R products when this security advisory was originally issued.
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"text": "EDK2\u0027s Network Package is susceptible to an out-of-bounds read vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality. ",
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"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
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"AV6",
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"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"notes": [
{
"category": "description",
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"title": "CVE description"
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"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
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"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
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"confidentialityImpact": "HIGH",
"environmentalScore": 7.5,
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},
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"name": "Out-of-bounds Read"
},
"notes": [
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"text": "EDK2\u0027s Network Package is susceptible to an out-of-bounds read vulnerability when processing Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality. ",
"title": "CVE description"
}
],
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"FX3",
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"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45231",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45231"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"environmentalScore": 5.9,
"environmentalSeverity": "MEDIUM",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 5.9,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45231"
},
{
"cve": "CVE-2023-45232",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability. ",
"title": "CVE description"
}
],
"product_status": {
"fixed": [
"FX1",
"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45232",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45232"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"environmentalScore": 6.7,
"environmentalSeverity": "MEDIUM",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 6.7,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45232"
},
{
"cve": "CVE-2023-45233",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.",
"title": "CVE description"
}
],
"product_status": {
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"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45233",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45233"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"environmentalScore": 6.7,
"environmentalSeverity": "MEDIUM",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 6.7,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45233"
},
{
"cve": "CVE-2023-45234",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.",
"title": "CVE description"
}
],
"product_status": {
"fixed": [
"FX1",
"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45234",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45234"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 7.5,
"environmentalSeverity": "HIGH",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 7.5,
"temporalSeverity": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45234"
},
{
"cve": "CVE-2023-45235",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability. ",
"title": "CVE description"
}
],
"product_status": {
"fixed": [
"FX1",
"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45235",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45235"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 7.5,
"environmentalSeverity": "HIGH",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 7.5,
"temporalSeverity": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45235"
},
{
"cve": "CVE-2023-45236",
"cwe": {
"id": "CWE-338",
"name": "Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.",
"title": "CVE description"
}
],
"product_status": {
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"FX1",
"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45236",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45236"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"environmentalScore": 5.2,
"environmentalSeverity": "MEDIUM",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "CHANGED",
"temporalScore": 5.2,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45236"
},
{
"cve": "CVE-2023-45237",
"cwe": {
"id": "CWE-338",
"name": "Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"
},
"notes": [
{
"category": "description",
"text": "EDK2\u0027s Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.",
"title": "CVE description"
}
],
"product_status": {
"fixed": [
"FX1",
"FX3",
"FX4",
"FX5",
"FX6",
"FX7",
"FX8",
"FX9",
"FX10"
],
"known_affected": [
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"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
"references": [
{
"category": "external",
"summary": "NVD - CVE-2023-45237",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45237"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "The problems are corrected in the following product versions: \n\n- APC4100 1.09 \n- APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). \n- C80 1.14 \n- MPC3100 1.24 \n- PPC1200 1.14 \n- PPC900 2.16 \n- APC2200 1.35 \n- PPC2200 1.35 \n- APC3100 1.45 \n- PPC3100 1.45\n\nB\u0026R recommends that customers apply the update at earliest convenience. \n\nThe process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. ",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
},
{
"category": "mitigation",
"details": "Deactivate the vulnerable component \n- The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. \n\nLimit accessibility \n- If PXE functionality is required, users should tightly restrict network traffic to legitimate users and block illegitimate PXE traffic, specifically related to IPv6. For instance, by blocking IPv6 network traffic on the control network firewall. \n\nhttps://help.br-automation.com/#/en/6/cyber-security/defense-in-depth-for-br-products/reference_architecture.html\n\nRefer to section \u201cGeneral security recommendations\u201d for further advise on how to keep your system secure. \n",
"product_ids": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"environmentalScore": 4.8,
"environmentalSeverity": "MEDIUM",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 4.8,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"AV1",
"AV2",
"AV3",
"AV4",
"AV5",
"AV6",
"AV7",
"AV8",
"AV9",
"AV10"
]
}
],
"title": "CVE-2023-45237"
}
]
}
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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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