CVE-2020-26279High· 7.7▾ TwilightPath traversal in github.com/ipfs/go-ipfs
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.4 · likelihood 0.3 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
1.7%
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.
ipfs get.Traversal fix patched in https://github.com/whyrusleeping/tar-utils/commit/20a61371de5b51380bbdb0c7935b30b0625ac227
tar-utils patch applied to go-ipfs via https://github.com/ipfs/go-ipfs/commit/b7ddba7fe47dee5b1760b8ffe897908417e577b2
Upgrade to go-ipfs 0.8 or later.
Binaries for the patched versions of go-ipfs are available on the IPFS distributions site, https://dist.ipfs.io/go-ipfs
If you have any questions or comments about this advisory:
github.com/ipfs/go-ipfs < 0.8.0Upgrade to a patched release:
github.com/ipfs/go-ipfs 0.8.0Connected by shared product, vendor, weakness, or advisory.