CVE-2019-3930 Memory corruption in Crestron AirMedia, Barco WePresent, Extron ShareLink, Teq AV IT WIPS710, SHARP PN-L703WA, Optoma WPS-Pro, Blackbox HD WPS, InFocus LiteShow3, and InFocus LiteShow4.
Remote unauthenticated attackers can execute arbitrary code as root via a stack buffer overflow in the web interface of various wireless presentation devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-3930?
CVE-2019-3930 is a critical memory corruption vulnerability in Crestron AirMedia, Barco WePresent, Extron ShareLink, Teq AV IT WIPS710, SHARP PN-L703WA, Optoma WPS-Pro, Blackbox HD WPS, InFocus LiteShow3, and InFocus LiteShow4., published on 30 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Crestron AM-100 firmware 1.6.0.2, Crestron AM-101 firmware 2.7.0.1, Barco wePresent WiPG-1000P firmware 2.3.0.10, Barco wePresent WiPG-1600W before firmware 2.4.1.19, Extron ShareLink 200/250 firmware 2.0.3.4, Teq AV IT WIPS710 firmware 1.1.0.7, SHARP PN-L703WA firmware 1.4.2.3, Optoma WPS-Pro firmware 1.0.0.5, Blackbox HD WPS firmware 1.0.0.5, InFocus LiteShow3 firmware 1.0.16, and InFocus LiteShow4 2.0.0.7 are vulnerable to a stack buffer overflow in libAwgCgi.so's PARSERtoCHAR function. A remote, unauthenticated attacker can use this vulnerability to execute arbitrary code as root via a crafted request to the return.cgi endpoint.
Which versions are affected by CVE-2019-3930?
It affects 12 products.
Products include Barco Wepresent Wipg-1000p Firmware, Barco Wepresent Wipg-1600w Firmware, Blackbox Hd Wireless Presentation System Firmware, Crestron Am-100 Firmware, Crestron Am-101 Firmware, Extron Sharelink 200 Firmware and 6 more.
How do I fix CVE-2019-3930?
No fix has been published for CVE-2019-3930 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-3930 being exploited?
There is no known exploitation of CVE-2019-3930 in the wild and no public exploit code.
Other vulnerabilities in Crestron AirMedia, Barco WePresent, Extron ShareLink, Teq AV IT WIPS710, SHARP PN-L703WA, Optoma WPS-Pro, Blackbox HD WPS, InFocus LiteShow3, and InFocus LiteShow4.
Sources
Also known as GHSA-xp69-2936-4v92.