{"id":77984,"date":"2020-04-15T07:42:14","date_gmt":"2020-04-15T05:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-git-privodyashhaya-k-utechke-uchyotnyh-dannyh"},"modified":"2020-04-15T07:42:14","modified_gmt":"2020-04-15T05:42:14","slug":"uyazvimost-v-git-privodyashhaya-k-utechke-uchyotnyh-dannyh","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/uyazvimost-v-git-privodyashhaya-k-utechke-uchyotnyh-dannyh","title":{"rendered":"Kwetsbaarheid in Git leidt tot datalekken van inloggegevens","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Gepubliceerd<\/a><\/noindex> correctieve versies van het gedistribueerde versiebeheersysteem Git 2.26.1, 2.25.3, 2.24.2, 2.23.2, 2.22.3, 2.21.2, 2.20.3, 2.19.4, 2.18.3 en 2.17.4, waarin is verholpen kwetsbaarheid<\/a><\/noindex> (CVE-2020-5260<\/a><\/noindex>) in de handler «credential.helper<\/a><\/noindex>«, wat leidt tot het verzenden van inloggegevens naar de verkeerde host wanneer de git-client verbinding maakt met de repository via een speciaal geformatteerde URL die een regelovergang bevat. De kwetsbaarheid kan worden gebruikt om inloggegevens van een andere host naar een server, gecontroleerd door de aanvaller, te verzenden. <\/p>\n

Bij het opgeven van een URL als «https:\/\/evil.com?host=github.com\/» zal de handler voor inloggegevens bij het verbinden met de host evil.com de inlogparameters doorgeven die zijn ingesteld voor github.com. Het probleem doet zich voor bij het uitvoeren van operaties zoals «git clone», inclusief het verwerken van URL's voor submodules (bijvoorbeeld bij het uitvoeren van «git submodule update» worden automatisch de URL's verwerkt die zijn opgegeven in het .gitmodules-bestand van de repository). De kwetsbaarheid is het gevaarlijkst in situaties waarin de ontwikkelaar een repository cloneert zonder de URL te zien, bijvoorbeeld bij het werken met submodules of in systemen die automatische acties uitvoeren, zoals in pakketbouwscripts.<\/p>\n

Om de kwetsbaarheid te blokkeren in nieuwe versies is verboden<\/a><\/noindex> de doorgifte van een nieuwe regel in alle waarden die worden verzonden via het protocol voor referentiedeling. Voor distributies kan men updates van pakketten volgen op de pagina's Debian<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, RHEL<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, Fedora<\/a><\/noindex>, Arch<\/a><\/noindex>, FreeBSD<\/a><\/noindex>.<\/p>\n

Als een workaround om het probleem te blokkeren is het aanbevolen<\/a><\/noindex> gebruik credential.helper niet bij het benaderen van openbare repositories en pas «git clone» niet toe in de «—recurse-submodules» modus met onbetrouwbare repositories. Om de credential.helper handler volledig uit te schakelen, die uitvoert het opslaan<\/a><\/noindex> en ophalen van wachtwoorden uit de cache<\/a><\/noindex>, beveiligd opslag<\/a><\/noindex> of een bestand met wachtwoorden, kan men de volgende commando's gebruiken:<\/p>\n

git config —unset credential.helper
\n git config —global —unset credential.helper
\n git config —system —unset credential.helper<\/p>\n

<\/a><\/noindex><\/p>\n

Bron: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-77984","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Kwetsbaarheid in Git die leidt tot blootstelling van referenties | ProHoster","description":"Correctieve versies van het gedistribueerde versiebeheersysteem Git 2.26.1, 2.25.3, 2.24.2, 2.23.2 zijn 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