CVE-2021-21272 – github.com/deislabs/oras

Package

Manager: go
Name: github.com/deislabs/oras
Vulnerable Version: >=0 <0.9.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00223 pctl0.44878

Details

Zip slip directory exploit in github.com/deislabs/oras ### Impact The directory support (#55) 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`. Precisely, the following users of the affected versions are impacted - `oras` CLI users who runs `oras pull`. - Go programs, which invokes `github.com/deislabs/oras/pkg/content.FileStore`. ### Patches The problem has been patched by the PR linked with this advisory. Users should upgrade their `oras` CLI and packages to `0.9.0`. ### Workarounds 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. ### References - [Zip Slip](https://github.com/snyk/zip-slip-vulnerability) ### For more information If you have any questions or comments about this advisory: * Open an issue on the [GitHub repo](https://github.com/deislabs/oras) * Email the [list of maintainers](https://github.com/deislabs/oras/blob/main/MAINTAINERS)

Metadata

Created: 2022-02-15T00:32:04Z
Modified: 2022-10-25T20:26:42Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-g5v4-5x39-vwhx/GHSA-g5v4-5x39-vwhx.json
CWE IDs: ["CWE-22", "CWE-59"]
Alternative ID: GHSA-g5v4-5x39-vwhx
Finding: F063
Auto approve: 1