6.5med

CVE-2017-6720

A vulnerability in the Secure Shell (SSH) subsystem of Cisco Small Business Managed Switches software could allow an authenticated, remote…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 73%
Public exploits
0
none known

Summary

A vulnerability in the Secure Shell (SSH) subsystem of Cisco Small Business Managed Switches software could allow an authenticated, remote attacker to cause a reload of the affected switch, resulting in a denial of service (DoS) condition. The vulnerability is due to improper processing of SSH connections. An attacker could exploit this vulnerability by logging in to an affected switch via SSH and sending a malicious SSH message. This vulnerability affects the following Cisco products when SSH is enabled: Small Business 300 Series Managed Switches, Small Business 500 Series Stackable Managed Switches, 350 Series Managed Switches, 350X Series Stackable Managed Switches, 550X Series Stackable Managed Switches, ESW2 Series Advanced Switches. Cisco Bug IDs: CSCvb48377.

Exploit prediction (EPSS)

1.40% probability of exploitation in the next 30 days, higher than 73% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.16.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.06.8AV:N/AC:L/Au:S/C:N/I:N/A:C

Affected products

  • n/a Cisco Small Business Managed Switches

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • securityfocus.com /bid/100933 · vdb-entry, x_refsource_BID, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.