The Simple Network Management Protocol (SNMP) uses "community strings" as a form of authentication. The default read-only string for SNMP is often set to "Public".

SNMP Overview:

SNMP is used for monitoring and managing network devices such as routers, switches, and servers.

Default Community Strings:

Default strings like "Public" (read-only) and "Private" (read-write) are well-known and often targeted by attackers if not changed.

Penetration Test Findings:

Discovering devices through SNMP indicates improper security practices where default settings haven’t been updated, making devices vulnerable.

Mitigation:

Change SNMP community strings to strong, unique values.

Restrict SNMP access to trusted IP ranges.

Configuration Management: Emphasizes updating default settings as a baseline security measure.

Penetration Testing Insights: Findings like this are critical for improving network security posture, aligning with EC-Council’s penetration testing methodologies.

EC-Council CISO References: