Cyber Risks · Cisco Talos

Vulnerability Spotlight: Multiple vulnerabilities in ZTE MF971R LTE router

Summary: Cisco Talos discovered multiple vulnerabilities in the ZTE MF971R LTE portable router, all exploitable by sending a specially crafted HTTP request to the device. Talos specifically called out the combination of CVE-2021-21748 (pre-authentication stack-based buffer overflow) and CVE-2021-21745 (CSRF/Referer check bypass), which together allow an attacker to trigger arbitrary remote code without any authentication, and ZTE has released an update.

Bottom line: Two chained flaws give an unauthenticated attacker remote code execution on the router, and the trigger is a user visiting a malicious website - so the compromise can arrive through ordinary browsing on a device sitting at the network edge.

Read the original at Cisco Talos ↗

Topics
Vulnerabilities & Patching
Mentions
CVE-2021-21745CVE-2021-21748
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