CVE-2025-64343 (GCVE-0-2025-64343)
Vulnerability from cvelistv5
Published
2025-11-07 05:20
Modified
2025-11-07 17:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-289 - Authentication Bypass by Alternate Name
Summary
(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| conda | constructor |
Version: < 3.13.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-64343",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-07T17:22:38.278569Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-11-07T17:24:38.228Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "constructor",
"vendor": "conda",
"versions": [
{
"status": "affected",
"version": "\u003c 3.13.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-289",
"description": "CWE-289: Authentication Bypass by Alternate Name",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-07T05:20:38.659Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq"
},
{
"name": "https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447"
},
{
"name": "https://github.com/conda/constructor/releases/tag/3.13.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/conda/constructor/releases/tag/3.13.0"
}
],
"source": {
"advisory": "GHSA-vvpr-2qg4-2mrq",
"discovery": "UNKNOWN"
},
"title": "(conda) Constructor: Excessive permissions during and after installation"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-64343",
"datePublished": "2025-11-07T05:20:38.659Z",
"dateReserved": "2025-10-30T17:40:52.031Z",
"dateUpdated": "2025-11-07T17:24:38.228Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-64343\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-11-07T06:15:33.673\",\"lastModified\":\"2025-11-07T06:15:33.673\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-289\"}]}],\"references\":[{\"url\":\"https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/conda/constructor/releases/tag/3.13.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq\",\"source\":\"security-advisories@github.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-64343\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-11-07T17:22:38.278569Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-11-07T17:24:33.859Z\"}}], \"cna\": {\"title\": \"(conda) Constructor: Excessive permissions during and after installation\", \"source\": {\"advisory\": \"GHSA-vvpr-2qg4-2mrq\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"conda\", \"product\": \"constructor\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.13.0\"}]}], \"references\": [{\"url\": \"https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq\", \"name\": \"https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447\", \"name\": \"https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d3577447\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/conda/constructor/releases/tag/3.13.0\", \"name\": \"https://github.com/conda/constructor/releases/tag/3.13.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-289\", \"description\": \"CWE-289: Authentication Bypass by Alternate Name\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-11-07T05:20:38.659Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-64343\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-07T17:24:38.228Z\", \"dateReserved\": \"2025-10-30T17:40:52.031Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-11-07T05:20:38.659Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
Loading…
Loading…