Skip to content
HackIndex logo

HackIndex

Memcached
Service

Memcached

Memcached is a distributed memory cache. Attackers enumerate keys, dump cached data and session tokens, and test for unauthenticated access and UDP amplification vulnerabilities

:11211 12 guides 4 phases
1 min read Updated: Jul 13, 2026

What is Memcached?
Memcached is a simple in-memory key/value cache used by applications to store sessions and hot data.

Common security issues

  • Unauthenticated access exposing cached session data or secrets

  • Cache keys revealing app structure and internal endpoints

  • Data leakage from shared caches used by multiple apps

  • Misconfiguration allowing access beyond intended networks

Enumeration

Nmap, key dumps, UDP checks, SASL, and TLS enum guides

7

Data Exfiltration

Dump and transfer all Memcached keys and values for offline analysis

1

Vulnerability Discovery

Find exposed cache data and test for UDP amplification risks

2

Exploitation

Extract cache data and session tokens from unauthenticated Memcached

2