by Kastro
Paper/Archive/CVE-2020-20277

CVE-2020-20277

mitre — There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10…

EPSS 26%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 98.0.980 × 2019.6No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgithub.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30ferefarinerron.com/blog/posts/6refpacketstormsecurity.com/files/167908/uftpd-2.10-Directory-Traversal.html