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Path traversal in github.com/ipfs/go-ipfs

High severity GitHub Reviewed Published Mar 24, 2021 in ipfs/kubo • Updated Jan 9, 2023

Package

gomod github.com/ipfs/go-ipfs (Go)

Affected versions

< 0.8.0

Patched versions

0.8.0

Description

Impact

It is currently possible for path traversal to occur with DAGs containing relative paths during retrieval. This can cause files to be overwritten, or written to incorrect output directories. The issue can only occur when ipfs get is done on an affected DAG.

  1. The only affected command is ipfs get.
  2. The gateway is not affected.

Patches

Traversal fix patched in whyrusleeping/tar-utils@20a6137
tar-utils patch applied to go-ipfs via ipfs/kubo@b7ddba7

Workarounds

Upgrade to go-ipfs 0.8 or later.

References

Binaries for the patched versions of go-ipfs are available on the IPFS distributions site, https://dist.ipfs.io/go-ipfs

For more information

If you have any questions or comments about this advisory:

References

@jacobheun jacobheun published to ipfs/kubo Mar 24, 2021
Reviewed May 21, 2021
Published to the GitHub Advisory Database Jun 23, 2021
Last updated Jan 9, 2023

Severity

High
7.7
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Weaknesses

CVE ID

CVE-2020-26279

GHSA ID

GHSA-27pv-q55r-222g

Source code

No known source code

Credits

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