Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Unified Computing System | >= 4.0, < 4.0\(4m\) |
| Cisco | Unified Computing System 64108 | - |
| Cisco | Unified Computing System 6454 | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uPatchVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uPatchVendor Advisory
FAQ
What is CVE-2021-1592?
CVE-2021-1592 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 vulner...
How severe is CVE-2021-1592?
CVE-2021-1592 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-1592?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Unified Computing System, Cisco Unified Computing System 64108, Cisco Unified Computing System 6454.