Podatność CVE-2021-21272


Publikacja: 2021-01-25

Opis:
ORAS is open source software which enables a way to push OCI Artifacts to OCI Conformant registries. ORAS is both a CLI for initial testing and a Go Module. In ORAS from version 0.4.0 and before version 0.9.0, there is a "zip-slip" vulnerability. The directory support feature allows the downloaded gzipped tarballs to be automatically extracted to the user-specified directory where the tarball can have symbolic links and hard links. A well-crafted tarball or tarballs allow malicious artifact providers linking, writing, or overwriting specific files on the host filesystem outside of the user-specified directory unexpectedly with the same permissions as the user who runs `oras pull`. Users of the affected versions are impacted if they are `oras` CLI users who runs `oras pull`, or if they are Go programs, which invoke `github.com/deislabs/oras/pkg/content.FileStore`. The problem has been fixed in version 0.9.0. For `oras` CLI users, there is no workarounds other than pulling from a trusted artifact provider. For `oras` package users, the workaround is to not use `github.com/deislabs/oras/pkg/content.FileStore`, and use other content stores instead, or pull from a trusted artifact provider.

Typ:

CWE-22

(Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:P/A:N)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
4/10
2.9/10
8/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Niska
Jednorazowa
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Brak
Częściowy
Brak
Affected software
Deislabs -> ORAS 

 Referencje:
https://github.com/deislabs/oras/commit/96cd90423303f1bb42bd043cb4c36085e6e91e8e
https://github.com/deislabs/oras/releases/tag/v0.9.0
https://github.com/deislabs/oras/security/advisories/GHSA-g5v4-5x39-vwhx
https://pkg.go.dev/github.com/deislabs/oras/pkg/oras

Copyright 2024, cxsecurity.com

 

Back to Top