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CVE-2023-45732 is a local privilege escalation vulnerability in com.proxyman.NSProxy.HelperTool (version 1.4.0) distributed with Proxyman.app up to version 4.11.0 on macOS. The HelperTool, a privileged service for managing system proxy settings via XPC, insufficiently enforces code-signing and legacy authorization checks. A local attacker can leverage an older, less-protected Proxyman.app (1.3.4) to communicate with the HelperTool and change system proxy settings, redirecting network traffic to an attacker-controlled host. The attack is facilitated by injecting a dynamic library into the old Proxyman app, which then manipulates the proxy settings via the HelperTool's XPC interface. The vulnerability is exploitable on macOS 13 Ventura and earlier.
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No public exploit code observed for this vulnerability.
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Cross-references every affected SKU, including bundled OEM variants.
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