A vulnerability was found in Crestron AM-100 and AM-101. It has been declared as very critical. This vulnerability affects the function PARSERtoCHAR of the file libAwgCgi.so. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 05/01/2019. The weakness was presented 04/30/2019. This vulnerability was named CVE-2019-3930 since 01/03/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/11/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 13484 (Crestron AM-100 and AM-101 Multiple Vulnerabilities).

Proper firewalling of is able to address this issue.

See VDB-134273, VDB-134274, VDB-134275 and VDB-134276 for similar entries.

Affected

• Crestron AM-100 1.6.0.2
• Crestron AM-101 2.7.0.1
• Barco wePresent WiPG-1000P 2.3.0.10
• Barco wePresent WiPG-1600W 2.4.1
• Extron ShareLink 200/Extron ShareLink 200 250 2.0.3.4
• Teq AV IT WIPS710 1.1.0.7
• SHARP PN-L703WA 1.4.2.3
• Optoma WPS-Pro 1.0.0.5
• Blackbox HD WPS 1.0.0.5
• InFocus LiteShow3 1.0.16
• InFocus LiteShow4 2.0.0.7

Productinfo

Vendor

• Crestron

Name

• AM-100
• AM-101

License

• commercial

CPE 2.3info

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CPE 2.2info

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