cve-2021-21300
Vulnerability from cvelistv5
Published
2021-03-09 00:00
Modified
2024-08-03 18:09
Summary
malicious repositories can execute remote code while cloning
References
security-advisories@github.comhttp://packetstormsecurity.com/files/163978/Git-LFS-Clone-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
security-advisories@github.comhttp://seclists.org/fulldisclosure/2021/Apr/60Mailing List, Third Party Advisory
security-advisories@github.comhttp://www.openwall.com/lists/oss-security/2021/03/09/3Exploit, Mailing List, Third Party Advisory
security-advisories@github.comhttps://git-scm.com/docs/git-config#Documentation/git-config.txt-coresymlinksVendor Advisory
security-advisories@github.comhttps://git-scm.com/docs/gitattributes#_filterVendor Advisory
security-advisories@github.comhttps://github.com/git/git/commit/684dd4c2b414bcf648505e74498a608f28de4592Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/git/git/security/advisories/GHSA-8prw-h3cq-mghmThird Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2022/10/msg00014.htmlMailing List, Third Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBPNGLQSYJHLZZ37BO42YY6S5OTIF4L4/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCLJJLKKMS5WRFO6C475AOUZTWQLIARX/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMXX2POK5X576BSDWSXGU7EIK6I72ERU/
security-advisories@github.comhttps://lore.kernel.org/git/xmqqim6019yd.fsf%40gitster.c.googlers.com/
security-advisories@github.comhttps://security.gentoo.org/glsa/202104-01Third Party Advisory
security-advisories@github.comhttps://support.apple.com/kb/HT212320Third Party Advisory
Impacted products
gitgit
Show details on NVD website


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The fix versions are: 2.30.1, 2.29.3, 2.28.1, 2.27.1, 2.26.3, 2.25.5, 2.24.4, 2.23.4, 2.22.5, 2.21.4, 2.20.5, 2.19.6, 2.18.5, 2.17.62.17.6.\"},{\"lang\":\"es\",\"value\":\"Git es un sistema de control de revisiones distribuido de c\u00f3digo abierto.\u0026#xa0;En las versiones afectadas de Git, un repositorio especialmente dise\u00f1ado que contiene enlaces simb\u00f3licos, as\u00ed como archivos que usan un filtro clean/smudge como Git LFS, puede hacer que se ejecute un script reci\u00e9n extra\u00eddo mientras se clona en un sistema de archivos que no distingue entre may\u00fasculas y min\u00fasculas como NTFS , HFS+ o APFS (es decir, los sistemas de archivos predeterminados en Windows y macOS).\u0026#xa0;Tome en cuenta que los filtros de clean/smudge deben ser configurados para eso.\u0026#xa0;Git para Windows configura Git LFS por defecto y, por lo tanto, es vulnerable.\u0026#xa0;El problema se ha corregido en las versiones publicadas el martes 9 de marzo de 2021. Como soluci\u00f3n temporal, si el soporte de enlace simb\u00f3lico est\u00e1 deshabilitado en Git (por ejemplo, por medio de \\\"git config --global core.symlinks false\\\"), el ataque descrito no funcionar\u00e1.\u0026#xa0;Del mismo modo, si no se configuran globalmente filtros clean/smudge como Git LFS (es decir,_before_ cloning), el ataque se frustra.\u0026#xa0;Como siempre, es mejor evitar la clonaci\u00f3n de repositorios de fuentes no confiables.\u0026#xa0;La primera versi\u00f3n afectada es 2.14.2.\u0026#xa0;Las versiones correctas son: 2.30.1, 2.29.3, 2.28.1, 2.27.1, 2.26.3, 2.25.5, 2.24.4, 2.23.4, 2.22.5, 2.21.4, 2.20.5, 2.19 .6, 2.18.5, 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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.