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CVE-2019-1967
CVE ID
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CVE-2019-1967
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to excessive use of system resources when the affected device is logging a drop action for received MODE_PRIVATE (Mode 7) NTP packets. An attacker could exploit this vulnerability by flooding the device with a steady stream of Mode 7 NTP packets. A successful exploit could allow the attacker to cause high CPU and memory usage on the affected device, which could cause internal system processes to restart or cause the affected device to unexpectedly reload. Note: The NTP feature is enabled by default.
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CVSS V3 Severity and Metrics
General Information
Vendors
- cisco
Products
- nx-os 6.0(2)a8,
- nx-os 6.0(2)a8(9.7),
- nx-os 6.0(2)u6,
- nx-os 6.2,
- nx-os 7.0(3)f,
- nx-os 7.0(3)i,
- nx-os 7.0(3)i7,
- nx-os 7.1(4),
- nx-os 7.1(4)n1(1),
- nx-os 7.1(5),
- nx-os 7.2,
- nx-os 7.3,
- nx-os 7.3(2)d1(1),
- nx-os 8.0,
- nx-os 8.1,
- nx-os 8.2,
- nx-os 8.3,
- nx-os 8.3(2)s5,
- nx-os 9.2,
- nx-os 9.2(1)
References
Additional Info
Technical Analysis
Report as Exploited in the Wild
CVE ID
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