Denial of service in Cisco Elastic Services Controller



Published: 2021-01-27
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-1312
CWE ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Elastic Services Controller
Server applications / Remote management servers, RDP, SSH

Vendor Cisco Systems, Inc

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Resource exhaustion

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1312

CWE-ID: CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to inadequate provisioning of kernel parameters for the maximum number of TCP connections and SYN backlog. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Elastic Services Controller: 5.3.0.94

CPE External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esc-dos-4Gw6D527

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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