A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://hackerone.com/reports/1892351 | third party advisory exploit |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/ | vendor advisory mailing list third party advisory |
| https://security.netapp.com/advisory/ntap-20230420-0012/ | third party advisory |
| https://security.gentoo.org/glsa/202310-12 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00016.html | third party advisory mailing list |