An incorrect permission assignment (chmod 777) of /etc/environment during the installation script of No Magic TeamworkCloud 18.0 through 19.0 allows any local unprivileged user to write to /etc/environment. An attacker can escalate to root by writing arbitrary code to this file, which would be executed by root during the next login, reboot, or sourcing of the environment.
CVE-2020-25507 (teamwork_cloud)
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