The OWASP NodeGoat project provides an environment to learn how OWASP Top 10 security risks apply to web applications developed using Node.js and how to effectively address them.
Vulnerable Package issue exists @ Npm-tar-2.2.1 in branch master
The npm package "tar" (aka node-tar) before versions 4.4.18, 5.0.10, and 6.1.9 has an arbitrary file creation/overwrite and arbitrary code execution vulnerability. node-tar aims to guarantee that any file whose location would be outside of the extraction target directory is not extracted. This is, in part, accomplished by sanitizing absolute paths of entries within the archive, skipping archive entries that contain .. path portions, and resolving the sanitized paths against the extraction target directory. This logic was insufficient on Windows systems when extracting tar files that contained a path that was not an absolute path, but specified a drive letter different from the extraction target, such as C:some\path. If the drive letter does not match the extraction target, for example D:\extraction\dir, then the result of path.resolve(extractionDirectory, entryPath) would resolve against the current working directory on the C: drive, rather than the extraction target directory. Additionally, a .. portion of the path could occur immediately after the drive letter, such as C:../foo, and was not properly sanitized by the logic that checked for .. within the normalized and split portions of the path. This only affects users of node-tar on Windows systems. These issues were addressed in releases 4.4.18, 5.0.10 and 6.1.9. The v3 branch of node-tar has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of node-tar. There is no reasonable way to work around this issue without performing the same path normalization procedures that node-tar now does. Users are encouraged to upgrade to the latest patched versions of node-tar, rather than attempt to sanitize paths themselves.
Vulnerable Package issue exists @ Npm-tar-2.2.1 in branch master
The npm package "tar" (aka node-tar) before versions 4.4.18, 5.0.10, and 6.1.9 has an arbitrary file creation/overwrite and arbitrary code execution vulnerability. node-tar aims to guarantee that any file whose location would be outside of the extraction target directory is not extracted. This is, in part, accomplished by sanitizing absolute paths of entries within the archive, skipping archive entries that contain
..path portions, and resolving the sanitized paths against the extraction target directory. This logic was insufficient on Windows systems when extracting tar files that contained a path that was not an absolute path, but specified a drive letter different from the extraction target, such asC:some\path. If the drive letter does not match the extraction target, for exampleD:\extraction\dir, then the result ofpath.resolve(extractionDirectory, entryPath)would resolve against the current working directory on theC:drive, rather than the extraction target directory. Additionally, a..portion of the path could occur immediately after the drive letter, such asC:../foo, and was not properly sanitized by the logic that checked for..within the normalized and split portions of the path. This only affects users ofnode-taron Windows systems. These issues were addressed in releases 4.4.18, 5.0.10 and 6.1.9. The v3 branch of node-tar has been deprecated and did not receive patches for these issues. If you are still using a v3 release we recommend you update to a more recent version of node-tar. There is no reasonable way to work around this issue without performing the same path normalization procedures that node-tar now does. Users are encouraged to upgrade to the latest patched versions of node-tar, rather than attempt to sanitize paths themselves.Namespace: RobertMickleCx Repository: NodeGoat Repository Url: https://github.com/RobertMickleCx/NodeGoat CxAST-Project: RobertMickleCx/NodeGoat CxAST platform scan: 421abb05-2701-4c6b-8cb3-89f91b91b3aa Branch: master Application: NodeGoat Severity: HIGH State: NOT_IGNORED Status: RECURRENT CWE: CWE-22
Additional Info Attack vector: LOCAL Attack complexity: LOW Confidentiality impact: HIGH Availability impact: NONE
References Advisory Commit Release Note