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https://github.com/fkie-cad/nvd-json-data-feeds.git
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72 lines
3.7 KiB
JSON
72 lines
3.7 KiB
JSON
{
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"id": "CVE-2025-24359",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2025-01-24T17:15:16.197",
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"lastModified": "2025-01-24T17:15:16.197",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "ASTEVAL is an evaluator of Python expressions and statements. Prior to version 1.0.6, if an attacker can control the input to the `asteval` library, they can bypass asteval's restrictions and execute arbitrary Python code in the context of the application using the library. The vulnerability is rooted in how `asteval` performs handling of `FormattedValue` AST nodes. In particular, the `on_formattedvalue` value uses the dangerous format method of the str class. The code allows an attacker to manipulate the value of the string used in the dangerous call `fmt.format(__fstring__=val)`. This vulnerability can be exploited to access protected attributes by intentionally triggering an `AttributeError` exception. The attacker can then catch the exception and use its `obj` attribute to gain arbitrary access to sensitive or protected object properties. Version 1.0.6 fixes this issue."
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},
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{
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"lang": "es",
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"value": "ASTEVAL es un evaluador de expresiones y declaraciones de Python. Antes de la versi\u00f3n 1.0.6, si un atacante pod\u00eda controlar la entrada de `asteval` librer\u00eda, pod\u00eda eludir las restricciones de asteval y ejecutar c\u00f3digo Python arbitrario en el contexto de la aplicaci\u00f3n utilizando tlibrer\u00edaary. La vulnerabilidad tiene su ra\u00edz en la forma en que `asteval` realiza el manejo de los nodos AST `FormattedValue`. En particular, el valor `on_formattedvalue` utiliza el m\u00e9todo de formato peligroso de la clase str. El c\u00f3digo permite a un atacante manipular el valor de la cadena utilizada en la llamada peligrosa `fmt.format(__fstring__=val)`. Esta vulnerabilidad se puede explotar para acceder a atributos protegidos activando intencionalmente una excepci\u00f3n `AttributeError`. El atacante puede entonces capturar la excepci\u00f3n y utilizar su atributo `obj` para obtener acceso arbitrario a propiedades de objetos confidenciales o protegidas. La versi\u00f3n 1.0.6 corrige este problema."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.4,
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"baseSeverity": "HIGH",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 2.5,
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"impactScore": 5.9
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}
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]
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},
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"weaknesses": [
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{
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"source": "security-advisories@github.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-134"
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},
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{
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"lang": "en",
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"value": "CWE-749"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/lmfit/asteval/blob/cfb57f0beebe0dc0520a1fbabc35e66060c7ea71/asteval/asteval.py#L507",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/lmfit/asteval/security/advisories/GHSA-3wwr-3g9f-9gc7",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://lucumr.pocoo.org/2016/12/29/careful-with-str-format",
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"source": "security-advisories@github.com"
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}
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]
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} |