CVE-2017-9389 Auth bypass in n/a
Unauthenticated attackers can execute arbitrary Lua code on Vera devices via the web interface, leading to full device compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-9389?
CVE-2017-9389 is a high-severity authentication bypass vulnerability in n/a, published on 17 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered on Vera VeraEdge 1.7.19 and Veralite 1.7.481 devices. The device provides a web user interface that allows a user to manage the device. As a part of the functionality the device allows a user to install applications written in the Lua programming language. Also the interface allows any user to write his/her application in the Lua language. However, this functionality is not protected by authentication and this allows an attacker to run arbitrary Lua code on the device. The POST request is forwarded to LuaUPNP daemon on the device. This binary handles the received Lua code in the function "LU::JobHandler_LuaUPnP::RunLua(LU::JobHandler_LuaUPnP *__hidden this, LU::UPnPActionWrapper *)". The value in the "code" parameter is then passed to the function "LU::LuaInterface::RunCode(char const*)" which actually loads the Lua engine and runs the code.
Weakness: CWE-287
Which versions are affected by CVE-2017-9389?
It affects 2 products.
Products include Getvera Veraedge Firmware, Getvera Veralite Firmware.
How do I fix CVE-2017-9389?
No fix has been published for CVE-2017-9389 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2017-9389 being exploited?
There is no known exploitation of CVE-2017-9389 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-g396-hmh7-47g4.