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A local privilege escalation vulnerability exists in SevenCs ORCA G2 2.0.1.35 (EC2007 Kernel v5.22). The flaw is a Time-of-Check Time-of-Use (TOCTOU) race condition in the license management logic. The regService process, which runs with SYSTEM privileges, creates a fixed directory and writes files without verifying whether the path is an NTFS reparse point. By exploiting this race condition, an attacker can replace the target directory with a junction pointing to a user-controlled path. This causes the SYSTEM-level process to drop binaries in a location fully controlled by the attacker, allowing arbitrary code execution with SYSTEM privileges. The vulnerability can be exploited by any standard user with only a single UAC confirmation, making it highly practical and dangerous in real-world environments.

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SevenCs ORCA G2 安全漏洞

SevenCs ORCA G2是德国SevenCs公司的一个电子海图系统。 SevenCs ORCA G2 2.0.1.35版本存在安全漏洞，该漏洞源于许可证管理逻辑中存在竞争条件，可能导致权限提升。

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