Ruben Santamarta has discovered a vulnerability in RealWin, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the processing of TCP packets received on port 910 by default. This can be exploited to cause a stack-based buffer overflow via an overly large INFOTAG/SET_CONTROL packet.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in RealWin demo version 2.0 (build 22.214.171.124). Other versions may also be affected.
Solution: Restrict network access to trusted users only.
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