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vuln-cve/data/2023/29xxx/CVE-2023-29383.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"state": "PUBLISHED",
"cveId": "CVE-2023-29383",
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"dateUpdated": "2026-10-14T22:55:00.155Z",
"dateReserved": "2023-04-05T00:00:00.000Z",
"datePublished": "2023-04-14T00:00:00.000Z"
},
"containers": {
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"shortName": "mitre",
"dateUpdated": "2023-04-14T00:00:00.000Z"
},
"descriptions": [
{
"lang": "en",
"value": "In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn (change finger). Although it is not possible to exploit this directly (e.g., adding a new user fails because \\n is in the block list), it is possible to misrepresent the /etc/passwd file when viewed. Use of \\r manipulations and Unicode characters to work around blocking of the : character make it possible to give the impression that a new user has been added. In other words, an adversary may be able to convince a system administrator to take the system offline (an indirect, social-engineered denial of service) by demonstrating that \"cat /etc/passwd\" shows a rogue user account."
}
],
"affected": [
{
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"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
],
"references": [
{
"url": "https://github.com/shadow-maint/shadow/pull/687"
},
{
"url": "https://github.com/shadow-maint/shadow/commit/e5905c4b84d4fb90aefcd96ee618411ebfac663d"
},
{
"url": "https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=31797"
},
{
"url": "https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/cve-2023-29383-abusing-linux-chfn-to-misrepresent-etc-passwd/"
}
],
"problemTypes": [
{
"descriptions": [
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"type": "text",
"lang": "en",
"description": "n/a"
}
]
}
]
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://github.com/shadow-maint/shadow/pull/687",
"tags": [
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{
"url": "https://github.com/shadow-maint/shadow/commit/e5905c4b84d4fb90aefcd96ee618411ebfac663d",
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"url": "https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=31797",
"tags": [
"x_transferred"
]
},
{
"url": "https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/cve-2023-29383-abusing-linux-chfn-to-misrepresent-etc-passwd/",
"tags": [
"x_transferred"
]
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00026.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T19:28:12.823Z"
}
},
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-125",
"lang": "en",
"description": "CWE-125 Out-of-bounds Read"
}
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-02-06T21:21:27.050601Z",
"id": "CVE-2023-29383",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-02-06T21:23:31.283Z"
}
},
{
"x_adpType": "supplier",
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"shortName": "siemens-SADP",
"dateUpdated": "2026-10-14T22:55:00.155Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
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"version": "V3.1.0",
"lessThan": "V3.1.5",
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"defaultStatus": "unknown"
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}
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]
}
}
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