High
Security advisory
Improper Input Validation of LDAP user IDs in Tribe29 Checkmk allows attackers that can control LDAP user IDs to manipulate files on the server. Checkmk <= 2.1.0p19, Checkmk <= 2.0.0p32, and all versions of Checkmk 1.6.0 (EOL) are affected.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-0284
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:15 UTC · Revision 1
Source evidence
Improper Input Validation of LDAP user IDs in Tribe29 Checkmk allows attackers that can control LDAP user IDs to manipulate files on the server. Checkmk <= 2.1.0p19, Checkmk <= 2.0.0p32, and all versions of Checkmk 1.6.0 (EOL) are affected.
osv:CVE-2023-0284
Complete source record
{
"id": "61d61703a672f893d768c9bb0ba66d9b303a0de15f56aed4515e35f43384fb92",
"url": "https://osv.dev/vulnerability/CVE-2023-0284",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2023-0284",
"summary": "Improper Input Validation of LDAP user IDs in Tribe29 Checkmk allows attackers that can control LDAP user IDs to manipulate files on the server. Checkmk <= 2.1.0p19, Checkmk <= 2.0.0p32, and all versions of Checkmk 1.6.0 (EOL) are affected.",
"evidence": "osv:CVE-2023-0284",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2023-0284",
"aliases": [
"CVE-2023-0284"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/checkmk/checkmk",
"type": "GIT",
"events": [
{
"introduced": "a08e390df0ae711bbee6fbdd0d32da1452918ae3"
},
{
"last_affected": "6b3449c7811f109b40ad60b4e23f5b8b25d070f2"
}
],
"database_specific": {
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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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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p2:*:*:*:*:*:*",
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{
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{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:b4:*:*:*:*:*:*",
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{
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{
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],
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},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p4:*:*:*:*:*:*",
"range": [
{
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:b5:*:*:*:*:*:*",
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{
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{
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{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:b6:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0-b6"
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p6:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:b7:*:*:*:*:*:*",
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{
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"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p7:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:b8:*:*:*:*:*:*",
"range": [
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p8:*:*:*:*:*:*",
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{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p11:*:*:*:*:*:*",
"range": [
{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p12:*:*:*:*:*:*",
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p14:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p15:*:*:*:*:*:*",
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{
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],
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p16:*:*:*:*:*:*",
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{
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],
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p17:*:*:*:*:*:*",
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p18:*:*:*:*:*:*",
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{
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{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.0.0:p29:*:*:*:*:*:*",
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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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{
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{
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p8:*:*:*:*:*:*",
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:b9:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-b9"
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{
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],
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p9:*:*:*:*:*:*",
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{
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}
],
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p10:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p10"
},
{
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}
],
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},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p11:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p11"
},
{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p12:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p12"
},
{
"last_affected": "2.1.0-p12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p13:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p13"
},
{
"last_affected": "2.1.0-p13"
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p14:*:*:*:*:*:*",
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{
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{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p15:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p15"
},
{
"last_affected": "2.1.0-p15"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p16:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p16"
},
{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p17:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p17"
},
{
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}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p18:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p18"
},
{
"last_affected": "2.1.0-p18"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:checkmk:checkmk:2.1.0:p19:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-p19"
},
{
"last_affected": "2.1.0-p19"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.0.0-NA",
"2.0.0-b1",
"2.0.0-b2",
"2.0.0-b3",
"2.0.0-b4",
"2.0.0-b5",
"2.0.0-b6",
"2.0.0-b7",
"2.0.0-b8",
"2.0.0-p10",
"2.0.0-p11",
"2.0.0-p12",
"2.0.0-p13",
"2.0.0-p14",
"2.0.0-p15",
"2.0.0-p16",
"2.0.0-p17",
"2.0.0-p18",
"2.0.0-p19",
"2.0.0-p20",
"2.0.0-p21",
"2.0.0-p22",
"2.0.0-p23",
"2.0.0-p24",
"2.0.0-p25",
"2.0.0-p26",
"2.0.0-p27",
"2.0.0-p28",
"2.0.0-p29",
"2.0.0-p30",
"2.0.0-p31",
"2.0.0-p32",
"2.0.0-p9",
"2.1.0-b1",
"2.1.0-b2",
"2.1.0-b3",
"2.1.0-b4",
"2.1.0-b5",
"2.1.0-b6",
"2.1.0-b7",
"2.1.0-b8",
"2.1.0-b9",
"2.1.0-p10",
"2.1.0-p11",
"2.1.0-p12",
"2.1.0-p13",
"2.1.0-p14",
"2.1.0-p15",
"2.1.0-p16",
"2.1.0-p17",
"2.1.0-p18",
"2.1.0-p19"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-0284.json"
}
}
],
"modified": "2026-10-24T10:30:26.311001527Z",
"provider": "osv",
"references": [
"https://checkmk.com/werk/15181"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:*"
],
"vendor_product": "tribe29:checkmk",
"extracted_events": [
{
"range": [
{
"introduced": "1.6.0"
},
{
"fixed": "2.0.0"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2023-0284",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431590,
"published_at": "2023-01-26T21:18:07.03+00:00"
}