Description: Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.
CVE-2024-45396
Published Date: 2024-10-11T15:15:04.457
Last Modified: 2024-10-11T15:15:04.457
CVSS Score: 7.5 (HIGH)
EPSS Score: N/A
Risk Score: N/A
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
7.5 |
EPSS:
0%
Mitre ATT&CK Technical v15.1
T1053.002 – At
Technical Analysis & Mitigation Measures
1. Technical Attack Analysis:
– The vulnerability in Quicly allows an attacker to cause a denial-of-service (DoS) by exploiting assertion failures. This can lead to the crashing of processes that rely on the Quicly implementation.
– The attack technique T1053.002 (Scheduled Task/Job) could be utilized to execute malicious tasks that exploit the vulnerability during scheduled operations, potentially leading to further exploitation scenarios.
– Possible outcomes of exploitation include:
– Service disruption for users relying on the affected application, leading to loss of availability.
– Potential for further attacks if the service is part of a larger infrastructure, disrupting related services.
– Increased resource consumption on the affected host due to repeated crashes and restarts.
2. Mitigation Measures:
– Upgrade Quicly to version including commit 2a95896104901589c495bc41460262e64ffcad5c or later.
– Implement rate limiting on QUIC requests to mitigate potential DoS attacks.
– Monitor logs for unusual patterns indicating exploitation attempts.
– Utilize application-level firewalls to detect and block malicious traffic.
– Conduct regular security assessments and penetration testing on the implementation.
– Isolate critical services to limit the impact of a potential attack.
– Ensure timely patch management for all components of the affected service.
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Reference Links
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