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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:anaconda:conda-build:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB06ECE3-3052-465B-88B2-B7BF8AC9249D", "versionEndExcluding": "25.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Conda-build contains commands and tools to build conda packages. Prior to version 25.3.1, The write_build_scripts function in conda-build creates the temporary build script conda_build.sh with overly permissive file permissions (0o766), allowing write access to all users. Attackers with filesystem access can exploit a race condition to overwrite the script before execution, enabling arbitrary code execution under the victim's privileges. This risk is significant in shared environments, potentially leading to full system compromise. Even with non-static directory names, attackers can monitor parent directories for file creation events. 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Los atacantes con acceso al sistema de archivos pod\u00edan explotar una condici\u00f3n de ejecuci\u00f3n para sobrescribir el script antes de su ejecuci\u00f3n, lo que permit\u00eda la ejecuci\u00f3n de c\u00f3digo arbitrario con los privilegios de la v\u00edctima. Este riesgo es significativo en entornos compartidos y podr\u00eda comprometer por completo el sistema. Incluso con nombres de directorio no est\u00e1ticos, los atacantes pueden monitorizar los directorios principales para detectar eventos de creaci\u00f3n de archivos. El breve intervalo entre la creaci\u00f3n del script (con permisos inseguros) y su ejecuci\u00f3n permite sobrescrituras r\u00e1pidas. Los nombres de directorio tambi\u00e9n se pueden inferir mediante marcas de tiempo o registros, y la automatizaci\u00f3n permite la explotaci\u00f3n incluso con rutas semi-aleatorizadas al actuar en milisegundos tras la detecci\u00f3n. Este problema se ha corregido en la versi\u00f3n 25.3.1. 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Adem\u00e1s, utilice la creaci\u00f3n at\u00f3mica de archivos (escribir en un nombre de archivo temporal aleatorio y renombrarlo autom\u00e1ticamente) para minimizar la ventana de condici\u00f3n de ejecuci\u00f3n."}], "id": "CVE-2025-32797", "lastModified": "2025-08-11T18:42:30.550", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2025-06-16T19:15:33.510", "references": [{"source": "[email protected]", "tags": ["Product"], "url": "https://github.com/conda/conda-build/blob/3f06913bba22c4e1ef1065df9e00d86ac97f087c/conda_build/build.py#L3054-L3084"}, {"source": "[email protected]", "tags": ["Patch"], "url": "https://github.com/conda/conda-build/commit/d246e49c8f45e8033915156ee3d77769926f3c2e"}, {"source": "[email protected]", "tags": ["Issue Tracking"], "url": "https://github.com/conda/conda-build/pull/5"}, {"source": "[email protected]", "tags": ["Vendor Advisory"], "url": "https://github.com/conda/conda-build/security/advisories/GHSA-vfp6-3v8g-vcmm"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-277"}], "source": "[email protected]", "type": "Primary"}]}

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