Vulnerabilities (CVE)

Filtered by vendor Shadow Project Subscribe
Filtered by product Shadow
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2018-7169 1 Shadow Project 1 Shadow 2019-10-03 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in shadow 4.5. newgidmap (in shadow-utils) is setuid and allows an unprivileged user to be placed in a user namespace where setgroups(2) is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if the administrator has used "group blacklisting" (e.g., chmod g-rwx) to restrict access to paths. This flaw effectively reverts a security feature in the kernel (in particular, the /proc/self/setgroups knob) to prevent this sort of privilege escalation.