Vulnerability Information
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Vulnerability Title
macOS Local Privilege Escalation via Improper Authorization Handling in EPSON Printer Controller Installer
Vulnerability Description
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.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
授权机制不正确
Vulnerability Title
EPSON Printer Controller Installer 安全漏洞
Vulnerability Description
EPSON Printer Controller Installer是日本爱普生（EPSON）公司的一个打印机驱动安装软件。 EPSON Printer Controller Installer存在安全漏洞，该漏洞源于XPC协议客户端身份验证不当和macOS授权模型执行不正确，可能导致本地权限提升。
CVSS Information
N/A
Vulnerability Type
N/A