title: Remote Code Execution in Baicells QRTB Platform
description: Baicells Nova 436Q, Nova 430E, Nova 430I, and Neutrino 430 LTE TDD eNodeB devices with firmware through QRTB 2.12.7 are vulnerable to remote shell code exploitation via HTTP command injections. Commands are executed using pre-login execution and executed with root permissions. The following methods below have been tested and validated by a 3rd party analyst and has been confirmed exploitable special thanks to Rustam Amin for providing the steps to reproduce.
problem types: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
affected:
{
defaultStatus: unaffected
modules: 2.12.x
platforms: QRTB
product: Nova 436Q
vendor: Baicells
versions:
changes: [at: 2.12.8, status: unaffected], lessThanOrEqual: 2.12.7, status: affected, version: 0, versionType: patch
}
{
defaultStatus: unaffected
modules: 2.12.x
platforms: QRTB
product: Nova 430E
vendor: Baicells
versions:
changes: [at: 2.12.8, status: unaffected], lessThanOrEqual: 2.12.7, status: affected, version: 0, versionType: patch
}
{
defaultStatus: unaffected
modules: 2.12.x
platforms: QRTB
product: Nova 430I
vendor: Baicells
versions:
changes: [at: 2.12.8, status: unaffected], lessThanOrEqual: 2.12.7, status: affected, version: 0, versionType: patch
}
{
defaultStatus: unaffected
modules: [2.12.x, 0]
platforms: QRTB
product: Neutrino 430
vendor: Baicells
versions:
changes: [at: 2.12.8, status: unaffected], lessThanOrEqual: 2.12.7, status: affected, version: 0, versionType: patch
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: LOW
integrityImpact: HIGH
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Baicells recommends that all customers currently running an earlier version of QRTB upgrades their products to the 2.12.8 firmware.