| Vulnerability Name: | CVE-2021-21272 (CCN-195549) | ||||||||||||
| Assigned: | 2020-12-22 | ||||||||||||
| Published: | 2021-01-22 | ||||||||||||
| Updated: | 2022-10-25 | ||||||||||||
| Summary: | 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. | ||||||||||||
| CVSS v3 Severity: | 7.7 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N) 6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
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| Vulnerability Type: | CWE-59 | ||||||||||||
| Vulnerability Consequences: | Obtain Information | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2021-21272 Source: XF Type: UNKNOWN deislabs-cve202121272-dir-traversal(195549) Source: MISC Type: Patch, Third Party Advisory https://github.com/deislabs/oras/commit/96cd90423303f1bb42bd043cb4c36085e6e91e8e Source: MISC Type: Release Notes, Third Party Advisory https://github.com/deislabs/oras/releases/tag/v0.9.0 Source: CCN Type: ORAS GIT Repository Tarballs with links can escape working directory upon extraction ("zip slip") Source: CONFIRM Type: Patch, Third Party Advisory https://github.com/deislabs/oras/security/advisories/GHSA-g5v4-5x39-vwhx Source: MISC Type: Third Party Advisory https://pkg.go.dev/github.com/deislabs/oras/pkg/oras Source: CCN Type: WhiteSource Vulnerability Database CVE-2021-21272 | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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