Unity com.unity3d.kharma Protocol Command Injection Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Unity Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handler for the com.unity3d.kharma protocol. A crafted URI with the com.unity3d.kharma protocol can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of the current user.
Additional Details
Unity Technologies has issued an update to correct this vulnerability. More details can be found at:
https://unity3d.com/security#CVE-2019-9197
Disclosure Timeline
- 2018-09-14 - Vulnerability reported to vendor
- 2019-03-05 - Coordinated public release of advisory
Credit
rgod of 9sg Security Team - rgod@9sgsec.com