When the fuzzers come knocking on port 389: Hunting injection canaries in LDAP
It's easy to think of core infrastructure protocols like LDAP, Kerberos, DNS, SMB, and NTP as furniture. They're so old, so ubiquitous, and normally so quietly reliable that we almost stop seeing them. However, history teaches us that Infrastructure protocols can and do have serious vulnerabilities. They say when you kick a rock over, dozens of bugs crawl out from under it. In this vein, this blog delves into how I went looking for one security issue and uncovered 6 other ones.