CVE-2021-44159 (GCVE-0-2021-44159)
Vulnerability from cvelistv5 – Published: 2021-12-20 03:10 – Updated: 2024-09-17 00:11
VLAI?
Title
4MOSAn GCB Doctor - Unrestricted Upload of File
Summary
4MOSAn GCB Doctor’s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack.
Severity ?
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| 4MOSAn | GCB Doctor |
Affected:
unspecified , ≤ 20210811(2.0)
(custom)
|
Date Public ?
2021-12-17 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:17:24.818Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "GCB Doctor",
"vendor": "4MOSAn",
"versions": [
{
"lessThanOrEqual": "20210811(2.0)",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"datePublic": "2021-12-17T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "4MOSAn GCB Doctor\u2019s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-12-20T03:10:19.000Z",
"orgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
"shortName": "twcert"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html"
}
],
"solutions": [
{
"lang": "en",
"value": "Update 4MOSAn GCB Doctor version to 20210916(v2.0)"
}
],
"source": {
"advisory": "TVN-202112002",
"discovery": "EXTERNAL"
},
"title": "4MOSAn GCB Doctor - Unrestricted Upload of File",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"AKA": "TWCERT/CC",
"ASSIGNER": "cve@cert.org.tw",
"DATE_PUBLIC": "2021-12-17T08:35:00.000Z",
"ID": "CVE-2021-44159",
"STATE": "PUBLIC",
"TITLE": "4MOSAn GCB Doctor - Unrestricted Upload of File"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "GCB Doctor",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_value": "20210811(2.0)"
}
]
}
}
]
},
"vendor_name": "4MOSAn"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "4MOSAn GCB Doctor\u2019s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-434 Unrestricted Upload of File with Dangerous Type"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html",
"refsource": "MISC",
"url": "https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html"
}
]
},
"solution": [
{
"lang": "en",
"value": "Update 4MOSAn GCB Doctor version to 20210916(v2.0)"
}
],
"source": {
"advisory": "TVN-202112002",
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
"assignerShortName": "twcert",
"cveId": "CVE-2021-44159",
"datePublished": "2021-12-20T03:10:19.975Z",
"dateReserved": "2021-11-23T00:00:00.000Z",
"dateUpdated": "2024-09-17T00:11:07.348Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-44159",
"date": "2026-05-19",
"epss": "0.04763",
"percentile": "0.89557"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-44159\",\"sourceIdentifier\":\"twcert@cert.org.tw\",\"published\":\"2021-12-20T03:15:06.650\",\"lastModified\":\"2024-11-21T06:30:28.083\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"4MOSAn GCB Doctor\u2019s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n file upload de 4MOSUAn GCB Doctor, presenta un control inapropiado de los privilegios del usuario. Un atacante remoto puede cargar archivos arbitrarios, incluyendo archivos webshell, sin autenticaci\u00f3n y ejecutar c\u00f3digo arbitrario para llevar a cabo operaciones arbitrarias del sistema o un ataque de denegaci\u00f3n de servicio\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"twcert@cert.org.tw\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"twcert@cert.org.tw\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-434\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:4mosan:gcb_doctor:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2021-09-16\",\"matchCriteriaId\":\"62B0DE1A-AE43-4274-A34C-9C364659C1C9\"}]}]}],\"references\":[{\"url\":\"https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html\",\"source\":\"twcert@cert.org.tw\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Loading…
Loading…