Linux: Beep Command Can Be Used to Probe for the Presence of Sensitive Files

'Catalin Cimpanu, writing for BleepingComputer: A vulnerability in the "beep" package that comes pre-installed with Debian and Ubuntu distros allows an attacker to probe for the presence of files on a computer, even those owned by root users, which are supposed to be secret and inaccessible. The vulnerability, tracked as CVE-2018-0492, has been fixed in recent versions of Debian and Ubuntu (Debian-based OS). At its core, the bug is a race condition in the beep utility that allows the OS to emit a "beep" sound whenever it is deemed necessary. Security researchers have discovered a race condition in the beep package that allows an attacker to elevate his code to root-level access.' -- source: https://linux.slashdot.org/story/18/04/10/142218 Cheers, peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/
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Peter Reutemann