{"id":184239,"date":"2026-11-12T11:41:56","date_gmt":"2026-11-12T09:41:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/uyazvimost-v-git-dopuskayushhaya-vypolnenie-koda-pri-klonirovanii-iz-vredonosnogo-git-repozitoriya"},"modified":"2026-11-12T11:42:03","modified_gmt":"2026-11-12T09:42:03","slug":"git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","title":{"rendered":"O vulnerabilitate \u00een Git care permite execu\u021bia codului la clonarea dintr-un depozit Git mali\u021bios","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Au fost publicate versiuni corective ale sistemului distribuit de gestionare a codului surs\u0103 Git 2.56.1, 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3 \u0219i 2.50.2, care rezolv\u0103 6 vulnerabilit\u0103\u021bi. Cea mai periculoas\u0103 vulnerabilitate (CVE-2026-111760) permite executarea codului atunci c\u00e2nd este utilizat\u0103 comanda &#171;git clone&#187; \u00een modul &#171;&#8212;recurse-submodules&#187; cu repozitorii controlate de atacator.<\/p>\n<p>Problema este cauzat\u0103 de faptul c\u0103 lungimea \u00eenregistr\u0103rii cu numele din index este calculat\u0103 folosind un tip \u00eentreg de 32 de bi\u021bi. C\u00e2nd se trimite un nume foarte lung de tipul &#171;.git\/&#8230;.&#187;, apare o suprascriere \u00eentreag\u0103, iar atacatorul poate determina o lungime egala cu 4 bi\u021bi. Ca rezultat, la verificarea valorii, se folosesc datele reale, iar \u00een timpul execu\u021biei opera\u021biunii se utilizeaz\u0103 versiunea scurtat\u0103 &#171;.git&#187;, ceea ce permite atacatorului s\u0103 \u00eenlocuiasc\u0103 fi\u0219ierul &#171;.git&#187; din submodul cu un link simbolic care indic\u0103 un director cu set\u0103rile \u0219i hooks.<\/p>\n<p>Alte vulnerabilit\u0103\u021bi:<\/p>\n<ul>\n<li class=\"l\"> CVE-2026-113408 &#8212; dep\u0103\u0219ire a limitelor directorului refs\/ prin trimiterea ca ramur\u0103 a HEAD a unui link simbolic cu valoarea &#171;refs\/heads\/....\/....\/....\/TARGET&#187; la clonarea unui repozitoriu gol prin protocolul Git v2. La executarea ulterioar\u0103 a &#171;git commit&#187;, va fi creat un fi\u0219ier TARGET \u00een r\u0103d\u0103cina repozitorului, ceea ce poate fi utilizat pentru a suprascrie fi\u0219iere \u00een repozitoriu \u0219i pentru a permite executarea de cod.\n<li class=\"l\"> CVE-2026-114467 &#8212; suprascrierea stivei la eliminarea semn\u0103turilor GPG, care poate duce la executarea de cod arbitrar. Problema este cauzat\u0103 de faptul c\u0103 func\u021bia remove_signature() p\u0103streaz\u0103 pozi\u021biile semn\u0103turilor \u00eentr-un array fix, destinat maxim dou\u0103 semn\u0103turi. C\u00e2nd se trimite o etichet\u0103 cu trei sau mai multe semn\u0103turi, datele sunt salvate \u00een afara array-ului.\n<li class=\"l\"> CVE-2026-114469 &#8212; la verificarea restric\u021biilor de dimensiune a patch-urilor binare, erau luate \u00een considerare datele \u00eenainte de desf\u0103\u0219urarea datelor comprimate, ceea ce ducea la citirea con\u021binutului din zona dincolo de limitele bufferului.\n<li class=\"l\"> CVE-2026-105437 &#8212; deteriorarea memoriei la executarea unor opera\u021biuni mari de combinare din cauza acumul\u0103rii dimensiunii rezultatului \u00eentr-un c\u00e2mp de tip int. \u00cen configura\u021bia GitLab, vulnerabilitatea poate fi exploatat\u0103 pentru a executa cod (problema este blocat\u0103 \u00een GitLab 19.5.4).\n<li class=\"l\"> CVE-2026-114466 &#8212; suprascrierea fi\u0219ierelor arbitrare \u00een FS prin comanda &#171;git fast-import&#187; din cauza elimin\u0103rii incomplete a vulnerabilit\u0103\u021bii CVE-2019-1348.\n<\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66669\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u043c \u043a\u043e\u0434\u043e\u043c Git 2.56.1, 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3 \u0438 2.50.2, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-111760) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u043a\u043e\u043c\u0430\u043d\u0434\u044b &#171;git clone&#187; \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 &#171;&#8212;recurse-submodules&#187; \u0441 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f\u043c\u0438, \u043f\u043e\u0434\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u044b\u043c\u0438 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0442\u0435\u043c, \u0447\u0442\u043e \u0434\u043b\u0438\u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u0438 \u0441 \u0438\u043c\u0435\u043d\u0435\u043c \u0432 \u0438\u043d\u0434\u0435\u043a\u0441\u0435 \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0435\u0442\u0441\u044f \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-184239","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 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care corecteaz\u0103 6 vulnerabilit\u0103\u021bi.","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Git, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0430\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 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