Rule Category

SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.

Alert Message

SERVER-OTHER OpenSSL DTLS SRTP extension parsing denial-of-service attempt

Rule Explanation

This event is generated when an OpenSSL TLS change cipher spec denial of service is detected. Impact: Attempted Denial of Service Details: Ease of Attack:

What To Look For

This event is generated when an OpenSSL TLS change cipher spec denial of service is detected.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic: Impact

Technique: Account Discovery

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

CVE

Additional Links

Rule Vulnerability

Buffer Overflow

Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.

CVE Additional Information

CVE-2014-3513
Memory leak in d1_srtp.c in the DTLS SRTP extension in OpenSSL 1.0.1 before 1.0.1j allows remote attackers to cause a denial of service (memory consumption) via a crafted handshake message.
Details
SeverityHIGH Base Score7.1
Impact Score6.9 Exploit Score8.6
Confidentiality ImpactNONE Integrity ImpactNONE
Availability ImpactCOMPLETE Access Vector
AuthenticationNONE Ease of Access