ProFTPD Access Control List bypass vulnerability

ProFTPD Access Control List bypass vulnerability Version 1.2.9 of ProFTPD introduced a vulnerability that causes CIDR-based Access Control Lists (ACLs) to be treated as "AllowAll", thereby allowing remote users full access to files available to the FTP daemon. proftpd 2004-05-19 2004-05-19 49496 remote 1.2.9-r2 1.2.9-r1 1.2.9

ProFTPD is an FTP daemon.

ProFTPD 1.2.9 introduced a vulnerability that allows CIDR-based ACLs (such as 10.0.0.1/24) to be bypassed. The CIDR ACLs are disregarded, with the net effect being similar to an "AllowAll" directive.

This vulnerability may allow unauthorized files, including critical system files to be downloaded and/or modified, thereby allowing a potential remote compromise of the server.

Users may work around the problem by avoiding use of CIDR-based ACLs.

ProFTPD users are encouraged to upgrade to the latest version of the package:


    # emerge sync

    # emerge -pv ">=net-ftp/proftpd-1.2.9-r2"
    # emerge ">=net-ftp/proftpd-1.2.9-r2"

CAN-2004-0432 klieber