Vulnerability Spotlight: Denial-of-service, information leak bugs in Mini-SNMPD
Summary: Cisco Talos's Aleksandar Nikolic found multiple vulnerabilities in Mini-SNMPD version 1.4, a lightweight SNMP server used in small and embedded devices including several based on OpenWRT. A crafted SNMP request can trigger an out-of-bounds read (TALOS-2020-0976/CVE-2020-6059) leading to information disclosure and denial of service, while a specially timed sequence of multiple connections can cause a stack buffer overflow (TALOS-2020-0977/CVE-2020-6060) and denial of service; Talos provided the patch.
Why it matters: Mini-SNMPD's small footprint is exactly why it sits on embedded and OpenWRT-based devices that rarely get patched, and these bugs need only a crafted packet or a handful of connections to leak memory or take the service down.
Read the original at Cisco Talos ↗
- Topics
- Vulnerabilities & Patching
- Mentions
- CVE-2020-6059CVE-2020-6060
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