CVE-2017-6633
A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.14% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- cisco/unified computing system
- Source
- psirt@cisco.com
References
- http://www.securityfocus.com/bid/98525Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038513
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucscVendor Advisory
- http://www.securityfocus.com/bid/98525Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038513
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucscVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.