Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
A TOCTOU (time-of-check time-of-use) race condition was found in the way SSSD, System Security Services Daemon, performed copying and removal of (user) directory trees.A local attacker, with permissions to write into directory of the victim, being actively / currently copied / removed via the sssd daemon facility, could use this flaw to conduct symbolic link attacks, leading to their ability to alter / remove directories outside of originally intended, to be modified, directory tree.
This issue was found by Florian Weimer of Red Hat Product Security Team.