Description
ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
ProFTPD Project ProFTPD
Default version status: unaffected
0 to ≤ 1.3.9eaffected1.3.10rc1 to < 1.3.10rc5affected
pkg:github/proftpd/proftpdReferences
- https://github.com/proftpd/proftpd/issues/2374 ↗
- https://github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af ↗
- https://github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c#L620 ↗
- https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5 ↗
- https://abraxaslabs.tech/research/proftpd-site-copy-dest-follow ↗
- https://github.com/proftpd/proftpd ↗
- https://www.vulncheck.com/advisories/proftpd-through-1.3-9e-and-1.3-10rc4-mod-copy-symlink-following-write-bypass ↗