CVE-2020-20277

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    CVE-2020-20277

    Published: 18 Dec 2020Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: https://arinerron.com/blog/posts/6, https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe, http://packetstormsecurity.com/files/167908/uftpd-2.10-Directory-Traversal.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b9c4a6fcb41427e1b3468141609173a41be6d947
    Fixed -None

    Affected versions

    v2.10

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-20277 | CVE-DB