TL;DR: CISA’s disclosure of CVE-2024-36401 showed attackers exploiting GeoServer for access and lateral movement before EDR detected anything, underscoring how application-layer attacks can outrun endpoint-centric controls, according to Oligo Security. The lesson is that cloud application detection, not endpoint telemetry alone, is now the deciding control for attack containment.
NHIMG editorial — based on content published by Oligo Security: Why EDR missed the GeoServer exploit and the case for CADR
Questions worth separating out
Q: How should security teams detect exploitation of internet-facing applications before EDR alerts?
A: Security teams should monitor application runtime activity, API calls, and exploit attempts directly at the service boundary.
Q: Why do application-layer attacks create more risk than endpoint teams expect?
A: Application-layer attacks matter because they can create valid-looking access without immediately triggering host-based malware signals.
Q: What breaks when organisations rely on EDR alone for exposed services?
A: What breaks is the detection timeline.
Practitioner guidance
- Place application-layer monitoring on externally reachable services Instrument internet-facing applications so exploit attempts, abnormal API calls, and suspicious runtime patterns are visible before host-based indicators appear.
- Correlate application events with identity and cloud telemetry Join service activity, cloud control plane logs, and identity signals so a vulnerable application is not treated as an isolated box but as part of the access chain.
- Prioritise containment playbooks for application footholds Build response steps that assume the attacker entered through the service itself and may already have moved laterally by the time endpoint alerts appear.
What's in the full article
Oligo Security's full article covers the operational detail this post intentionally leaves for the source:
- The vendor’s breakdown of how the GeoServer exploit unfolded against the CISA-disclosed vulnerability.
- Specific reasoning behind why EDR visibility lagged behind the application-layer compromise.
- The CADR capability framing and the runtime telemetry patterns the vendor says matter most.
- The article’s product-focused comparison of detection priorities for AppSec, CloudSec, and SecOps teams.
👉 Read Oligo Security’s analysis of the GeoServer exploit and EDR blind spots →
GeoServer exploit and EDR gaps: what security teams missed?
Explore further
EDR-centric detection fails when the exploit lives in the application boundary. This incident shows that host telemetry can remain quiet while an attacker is already using a vulnerable service as an entry point. The problem is not only missed alerts, but the wrong control plane for the attack. Practitioners should treat internet-facing application runtime as a primary detection surface, not an afterthought.
A few things that frame the scale:
- 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job, according to the 2026 Infrastructure Identity Survey.
- Only 13% of organisations feel extremely prepared for the reality of agentic AI, which shows how thin the governance base is for systems that can act at runtime.
A question worth separating out:
Q: Who is accountable when an application exploit becomes a broader breach?
A: Accountability usually spans application security, cloud security, and incident response leadership because the failure crossed control domains. The application team owns exposure and patching, while detection and response teams own visibility and containment. Frameworks such as the NIST Cybersecurity Framework 2.0 help assign responsibility across protect, detect, and respond functions.
👉 Read our full editorial: GeoServer exploit shows why EDR misses application-layer attacks