CVEvulnerability
CVE-2020-20277
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-12-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-22
Description
There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.
Affected configurations
• troglobit uftpd (>= 2.7 <= 2.10)
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- http://packetstormsecurity.com/files/167908/uftpd-2.10-Directory-Traversal.html Exploit, Third Party Advisory, VDB Entry
- https://arinerron.com/blog/posts/6 Third Party Advisory
- https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe Patch, Third Party Advisory
- http://packetstormsecurity.com/files/167908/uftpd-2.10-Directory-Traversal.html Exploit, Third Party Advisory, VDB Entry
- https://arinerron.com/blog/posts/6 Third Party Advisory
- https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe Patch, Third Party Advisory