SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.
SERVER-OTHER OpenSSL DTLS zero-length fragments denial of service attempt
This event is generated when a bunch of DTLS packets with a fragment size of 0 are detected. Impact: Denial of Service Details: Ease of Attack:
No public information
No known false positives
Cisco Talos Intelligence Group
Tactic:
Technique:
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org
CVE-2014-3507Memory leak in d1_both.c in the DTLS implementation in OpenSSL 0.9.8 before 0.9.8zb, 1.0.0 before 1.0.0n, and 1.0.1 before 1.0.1i allows remote attackers to cause a denial of service (memory consumption) via zero-length DTLS fragments that trigger improper handling of the return value of a certain insert function. |
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