NetSight
critical9.8

CVE-2017-9855

An issue was discovered in SMA Solar Technology products.

Impact

An issue was discovered in SMA Solar Technology products. A secondary authentication system is available for Installers called the Grid Guard system. This system uses predictable codes, and a single Grid Guard code can be used on any SMA inverter. Any such code, when combined with the installer account, allows changing very sensitive parameters. NOTE: the vendor reports that Grid Guard is not an authentication feature; it is only a tracing feature. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

Affected products

VendorProductAffected versions
SmaSunny Boy 3600 Firmware
All versions
SmaSunny Boy 5000 Firmware
All versions
SmaSunny Tripower Core1 Firmware
All versions
SmaSunny Tripower 15000tl Firmware
All versions
SmaSunny Tripower 20000tl Firmware
All versions
SmaSunny Tripower 25000tl Firmware
All versions
SmaSunny Tripower 5000tl Firmware
All versions
SmaSunny Tripower 12000tl Firmware
All versions
SmaSunny Tripower 60 Firmware
All versions
SmaSunny Boy 3000tl Firmware
All versions
SmaSunny Boy 3600tl Firmware
All versions
SmaSunny Boy 4000tl Firmware
All versions

Weakness classification

References