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tid-212
Vulnerability from emb3d
Type
Description
Some devices utilize a shared secret authentication scheme to verify firmware updates. This is an improvement over unauthenticated updates (as in TID-211) and can be coupled with or implemented as symmetric key encryption for added confidentiality. This process requires the shared secret to be present on the device for verification (or decryption). Often the same shared secret will be used across many or all examples of that model device, therefore if the secret is compromised on one device it makes all others vulnerable. A threat actor may extract the secret via various means then use it to fabricate a malicious firmware update that is accepted by all devices that use the same integrity mechanism and shared secret. Malicious firmware or software could then be installed to (i) “brick” the device and prevent it from being reset, (ii) install malicious logic on the device, including to gain persistence, or (iii) enable access to ease reverse engineering the device to identify remotely exploitable vulnerabilities on the device.
CWE
- CWE-12326: Missing Immutable Root of Trust in Hardware
CVE-2022-38773 (GCVE-0-2022-38773)
Vulnerability from cvelistv5
Published
2023-01-10 11:39
Modified
2025-04-03 15:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1326 - Missing Immutable Root of Trust in Hardware
Summary
Affected devices do not contain an Immutable Root of Trust in Hardware. With this the integrity of the code executed on the device can not be validated during load-time. An attacker with physical access to the device could use this to replace the boot image of the device and execute arbitrary code.
References
Impacted products
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"vendor": "Siemens",
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{
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]
},
{
"defaultStatus": "unknown",
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{
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},
{
"defaultStatus": "unknown",
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{
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},
{
"defaultStatus": "unknown",
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{
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{
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{
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{
"defaultStatus": "unknown",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"defaultStatus": "unknown",
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{
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]
},
{
"defaultStatus": "unknown",
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{
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]
},
{
"defaultStatus": "unknown",
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{
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]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1515R-2 PN",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
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]
},
{
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{
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},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
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{
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{
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{
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{
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{
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},
{
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]
},
{
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},
{
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},
{
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]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1517H-3 PN",
"vendor": "Siemens",
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{
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"status": "affected",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
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]
},
{
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"product": "SIPLUS S7-1500 CPU 1518F-4 PN/DP",
"vendor": "Siemens",
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{
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]
},
{
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"product": "SIPLUS S7-1500 CPU 1518HF-4 PN",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Affected devices do not contain an Immutable Root of Trust in Hardware. With this the integrity of the code executed on the device can not be validated during load-time. An attacker with physical access to the device could use this to replace the boot image of the device and execute arbitrary code."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:T/RC:C",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1326",
"description": "CWE-1326: Missing Immutable Root of Trust in Hardware",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-01-14T10:27:00.487Z",
"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"shortName": "siemens"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-482757.pdf"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-482757.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"assignerShortName": "siemens",
"cveId": "CVE-2022-38773",
"datePublished": "2023-01-10T11:39:37.547Z",
"dateReserved": "2022-08-26T13:13:01.075Z",
"dateUpdated": "2025-04-03T15:37:09.647Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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