I. BACKGROUND According to the vendor "UnitedLinux addresses enterprise customers' needs for a high quality, low cost, standards-based Linux environment that enables the widespread adoption of Linux." II. DESCRIPTION The folders below /usr/src/packages/ ships with the following permissions: drwxrwxrwt, which makes it writeable by all users. III. ANALYSIS This makes way for planting of rogue source, ultimately leading to a full system compromise. IV. DETECTION UnitedLinux 1.0 (i586) beta3 is found to be vulnerable. V. WORKAROUND Change the permissions on /usr/src/packages/* and below to something more suitable. VI. VENDOR FIX unknown VII. CVE INFORMATION unknown VIII. DISCLOSURE TIMELINE unknown IX. CREDIT Knud Erik Højgaard/kokanin[a]dtors.net