CVE-2025-4960
HighSummary
Narzędzie com.epson.InstallNavi.helper, dostarczane z instalatorem sterownika drukarki EPSON, zawiera podatność na eskalację uprawnień lokalnych z powodu wielu błędów w implementacji. Nieprawidłowo uwierzytelnia klientów w protokole XPC i nie egzekwuje poprawnie modelu autoryzacji macOS, co naraża funkcjonalność z uprawnieniami na dostęp ze strony nieufnych użytkowników.
Risk Assessment
Podatność ta pozwala atakującym na wykonywanie operacji z uprawnieniami, takich jak uruchamianie dowolnych poleceń czy instalowanie komponentów systemowych, bez potrzeby posiadania uprawnień administratora. Może to prowadzić do poważnych naruszeń bezpieczeństwa w organizacji.
Recommendation
Zaleca się aktualizację narzędzia com.epson.InstallNavi.helper do najnowszej wersji, która naprawia te błędy. Dodatkowo, warto ograniczyć dostęp do tego narzędzia tylko do zaufanych użytkowników.
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Original NVD description (English source)
The com.epson.InstallNavi.helper tool, deployed with the EPSON printer driver installer, contains a local privilege escalation vulnerability due to multiple flaws in its implementation. It fails to properly authenticate clients over the XPC protocol and does not correctly enforce macOS’s authorization model, exposing privileged functionality to untrusted users. Although it invokes the AuthorizationCopyRights API, it does so using overly permissive custom rights that it registers in the system’s authorization database (/var/db/auth.db). These rights can be requested and granted by the authorization daemon to any local user, regardless of privilege level. As a result, an attacker can exploit the vulnerable service to perform privileged operations such as executing arbitrary commands or installing system components without requiring administrative credentials.