Threat Bulletin 1124: carpet-bombing UDP flood against a airline booking platform in the Middle East

On Tuesday 17 June 2025 at 20:35 UTC, a carpet-bombing UDP flood targeted a airline booking customer in the Middle East. The attack peaked at 195.2 Gbps and lasted 161 minutes. Traffic originated from 1251 autonomous systems in 94 countries, predominantly mobile carrier ranges.

Vector carpet-bombing UDP flood
Peak 195.2 Gbps
Duration 161 min
Time to mitigation 0.926 s
Attack traffic reaching origin 0.047%
Legitimate traffic challenged 0.40%

Timeline

The attack was preceded by a hacktivist channel announcing the target. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 21 points of presence.

What the customer saw

Checkout conversion was unchanged compared with the same hour of the previous week.

Recommendations

  • Keep origin IPs out of public DNS history.
  • Lower challenge thresholds on authentication endpoints during high-risk events.
  • Review allow-listed partner ranges quarterly.

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