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CVE-2020-25205 - Soft boiled Mixes

Description

The web console for Mimosa B5 B5c and C5x firmware through 2.8.0.2 is vulnerable to stored XSS in the set_banner() function of /var/www/core/controller/index.php. An unauthenticated attacker may set the contents of the /mnt/jffs2/banner.txt file stored on the device’s filesystem to contain arbitrary JavaScript. The file contents are then used as part of a welcome/banner message presented to unauthenticated users who visit the login page for the web console. This vulnerability does not occur in the older 1.5.x firmware versions.

Reference

https://labs.f-secure.com/advisories/ https://labs.f-secure.com/advisories/mimosa-ptp-devices-multiple-vulnerabilities/