Improper Authentication (CWE-287) in the PAM configuration in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a local attacker to authenticate as a uid=0 account without a password and obtain a root shell via an /etc/passwd entry with an empty password field.
Exploitability
AV:LAC:LAT:NPR:HUI:NVulnerable System
VC:HVI:HVA:HSubsequent System
SC:NSI:NSA:N8.4/CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NAuthentication
Other