CVE-2021-1592CWE-664

Cisco UCS Manager Software SSH Sessions Denial of Service Vulnerability

Medium · published August 25, 2021

CVSS v3.1
4.3
EPSS
1%
Percentile
63.4
In the wild
Unconfirmed
What it is

A vulnerability in the way Cisco UCS Manager software handles SSH sessions could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management for established SSH sessions. An attacker could exploit this vulnerability by opening a significant number of SSH sessions on an affected device. A successful exploit could allow the attacker to cause a crash and restart of internal Cisco UCS Manager software processes and a temporary loss of access to the Cisco UCS Manager CLI and web UI. Note: The attacker must have valid user credentials to authenticate to the affected device.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.01032 · 63.4th percentile
Weakness
CWE-664 · Improper Control of a Resource Through its Lifetime
Published
2021-08-25T19:11Z
EPSS history
Timeline
  • 25 AUG 19:11Z
    Cisco UCS Manager Software SSH Sessions Denial of Service Vulnerability
    cvelistv5