{"id":115448,"date":"2024-04-30T13:53:09","date_gmt":"2024-04-30T11:53:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-realizaczii-yazyka-r-pozvolyayushhaya-vypolnit-kod-pri-obrabotke-fajlov-rds-i-rdx"},"modified":"2024-04-30T13:53:09","modified_gmt":"2024-04-30T11:53:09","slug":"uyazvimost-v-realizaczii-yazyka-r-pozvolyayushhaya-vypolnit-kod-pri-obrabotke-fajlov-rds-i-rdx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/uyazvimost-v-realizaczii-yazyka-r-pozvolyayushhaya-vypolnit-kod-pri-obrabotke-fajlov-rds-i-rdx","title":{"rendered":"S\u00e5rbarhed i implementeringen af R-sproget, der muligg\u00f8r eksekvering af kode ved behandling af rds- og rdx-filer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I hovedimplementationen af programmeringssproget R, der er rettet mod l\u00f8sningen af opgaver inden for statistisk behandling, analyse og visualisering af data, er der opdaget en kritisk s\u00e5rbarhed (CVE-2024-27322), der f\u00f8rer til kodeudf\u00f8relse ved deserialisering af upolerede data. S\u00e5rbarheden kan udnyttes ved behandling af specielt udformede filer i RDS (R Data Serialization) og RDX formater, der anvendes til datadeling mellem applikationer. Problemet er l\u00f8st i udgivelsen R 4.4.0. Opdateringer til pakker i distributioner kan f\u00f8lges p\u00e5 siderne for Debian, Ubuntu, RHEL, SUSE\/openSUSE, Fedora, Arch, FreeBSD. <\/p>\n

S\u00e5rbarheden skyldes en funktion ved readRDS, der anvendes til at indl\u00e6se filer i RDS og RDX formater, som tillader transmission af serialiserede R-objekter til behandling p\u00e5 et andet system. Serialisering muligg\u00f8r at fastfryse tilstande og dele datas\u00e6t mellem programmer. RDS-formatet muligg\u00f8r lagring af tilstanden af et enkelt objekt, mens RDX-formatet i kombination med RDB-filer giver mulighed for at overf\u00f8re information om flere objekter. Problemet relaterer sig til, at RDS-formatet underst\u00f8tter objekttypen PROMSXP, der er relateret til Promise-typen, som anvendes til at definere udtryk, der kaldes asynkront ved brug af de tilknyttede v\u00e6rdier. <\/p>\n

Under deserialization, three components are used to determine the Promise object \u2014 the value of the Promise, the expression, and the environment. If a precomputed value is not provided for the Promise type, it is calculated during deserialization by executing the expression using the 'eval' function. This allows an attacker to execute arbitrary code in the R language by substituting it in place of expressions associated with uncomputed values in RDS or RDX files.
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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