CVE-2023-4759
Vulnerability from cvelistv5
Published
2023-09-12 09:12
Modified
2024-08-02 07:37
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Improper handling of case insensitive filesystems in Eclipse JGit allows arbitrary file write
References
emo@eclipse.orghttps://git.eclipse.org/c/jgit/jgit.git/commit/?id=9072103f3b3cf64dd12ad2949836ab98f62dabf1Patch, Vendor Advisory
emo@eclipse.orghttps://gitlab.eclipse.org/security/vulnerability-reports/-/issues/11Issue Tracking, Vendor Advisory
emo@eclipse.orghttps://projects.eclipse.org/projects/technology.jgit/releases/6.6.1Release Notes, Vendor Advisory
Impacted products
Eclipse FoundationEclipse JGit
Show details on NVD website

To clipboard 

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              "value": "\u003cp\u003eArbitrary File Overwrite in Eclipse JGit \u0026lt;= 6.6.0\u003c/p\u003e\u003cp\u003eIn Eclipse JGit, all versions \u0026lt;= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem.\u003c/p\u003e\u003cp\u003eThis can happen on checkout (\u003ccode\u003eDirCacheCheckout\u003c/code\u003e), merge (\u003ccode\u003eResolveMerger\u003c/code\u003e\u0026nbsp;via its \u003ccode\u003eWorkingTreeUpdater\u003c/code\u003e), pull (\u003ccode\u003ePullCommand\u003c/code\u003e\u0026nbsp;using merge), and when applying a patch (\u003ccode\u003ePatchApplier\u003c/code\u003e). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command.\u003c/p\u003e\u003cp\u003eThe issue occurs only on case-\u003cstrong\u003ein\u003c/strong\u003esensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration.\u003c/p\u003e\u003cp\u003eSetting git configuration option \u003ccode\u003ecore.symlinks = false\u003c/code\u003e\u0026nbsp;before checking out avoids the problem.\u003c/p\u003e\u003cp\u003eThe issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://repo1.maven.org/maven2/org/eclipse/jgit/\"\u003eMaven Central\u003c/a\u003e\u0026nbsp;and \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://repo.eclipse.org/content/repositories/jgit-releases/\"\u003erepo.eclipse.org\u003c/a\u003e. A backport is available in 5.13.3 starting from  5.13.3.202401111512-r.\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThe JGit maintainers would like to thank RyotaK for finding and reporting this issue.\u003cbr\u003e\u003c/p\u003e\u003cbr\u003e"
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This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command.\\n\\nThe issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration.\\n\\nSetting git configuration option core.symlinks = false\u00a0before checking out avoids the problem.\\n\\nThe issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via  Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ \u00a0and  repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . A backport is available in 5.13.3 starting from  5.13.3.202401111512-r.\\n\\n\\nThe JGit maintainers would like to thank RyotaK for finding and reporting this issue.\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Sobrescritura Arbitraria de Archivos en Eclipse JGit \u0026lt;= 6.6.0 En Eclipse JGit, todas las versiones \u0026lt;= 6.6.0.202305301015-r, se puede utilizar un enlace simb\u00f3lico presente en un repositorio git especialmente manipulado para escribir un archivo en ubicaciones fuera del \u00e1rbol de trabajo cuando esto el repositorio se clona con JGit en un sistema de archivos que no distingue entre may\u00fasculas y min\u00fasculas, o cuando se realiza una extracci\u00f3n de un clon de dicho repositorio en un sistema de archivos que no distingue entre may\u00fasculas y min\u00fasculas. Esto puede suceder al finalizar la compra (DirCacheCheckout), fusionar (ResolveMerger a trav\u00e9s de su WorkingTreeUpdater), extraer (PullCommand usando merge) y al aplicar un parche (PatchApplier). Esto se puede aprovechar para la ejecuci\u00f3n remota de c\u00f3digo (RCE), por ejemplo, si el archivo escrito fuera del \u00e1rbol de trabajo es un filtro git que se ejecuta en un comando git posterior. El problema ocurre solo en sistemas de archivos que no distinguen entre may\u00fasculas y min\u00fasculas, como los sistemas de archivos predeterminados en Windows y macOS. El usuario que realiza la clonaci\u00f3n o el pago debe tener derechos para crear enlaces simb\u00f3licos para que ocurra el problema, y ??los enlaces simb\u00f3licos deben estar habilitados en la configuraci\u00f3n de git. Configurar la opci\u00f3n de configuraci\u00f3n de git core.symlinks = false antes de realizar el check-out evita el problema. El problema se solucion\u00f3 en Eclipse JGit versi\u00f3n 6.6.1.202309021850-r y 6.7.0.202309050840-r, disponibles a trav\u00e9s de Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ y repo.eclipse.org https: //repo.eclipse.org/content/repositories/jgit-releases/. 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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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