World-writable permissions in Schneider Electric MiCOM S1 Studio installer routine allows privilege escalation and malicious file execution

CVE-2013-0687 · MEDIUM Severity

AV:L/AC:M/AU:S/C:C/I:C/A:C

The installer routine in Schneider Electric MiCOM S1 Studio uses world-writable permissions for executable files, which allows local users to modify the service or the configuration files, and consequently gain privileges or trigger incorrect protective-relay operation, via a Trojan horse executable file.

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