Unified Computing System
CVE-2021-1592
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-664. 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. Affected products include: Cisco Unified Computing System.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Unified Computing System
View allAn unspecified CGI script in Cisco FX-OS before 1.1.2 on Firepower 9000 devices and Cisco Unified Computing System (UCS)
A vulnerability in the Unidirectional Link Detection (UDLD) feature of Cisco FXOS Software and Cisco NX-OS Software coul
A vulnerability in the web server of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote a
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could all
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could all
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could all
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could all
Cisco NX-OS 4.0 through 6.1 on Nexus 1000V 3000, 4000, 5000, 6000, and 7000 devices and Unified Computing System (UCS) p
The Baseboard Management Controller (BMC) in Cisco Unified Computing System (UCS) does not properly handle SSH escape se
A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could all
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) could allow an aut
Same technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today