A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management in the proxy service of an affected device. An attacker could exploit this vulnerability by establishing a large number of HTTPS connections to the affected device. A successful exploit could allow the attacker to cause the system to stop processing new connections, which could result in a DoS condition. Note: Manual intervention may be required to recover from this situation.

Project Subscriptions

Vendors Products
Asyncos Subscribe
Web Security Appliance S170 Subscribe
Web Security Appliance S190 Subscribe
Web Security Appliance S380 Subscribe
Web Security Appliance S390 Subscribe
Web Security Appliance S680 Subscribe
Web Security Appliance S690 Subscribe
Web Security Appliance S690x Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2021-21348 A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management in the proxy service of an affected device. An attacker could exploit this vulnerability by establishing a large number of HTTPS connections to the affected device. A successful exploit could allow the attacker to cause the system to stop processing new connections, which could result in a DoS condition. Note: Manual intervention may be required to recover from this situation.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 07 Nov 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-07T21:47:53.922Z

Reserved: 2021-06-15T00:00:00

Link: CVE-2021-34698

cve-icon Vulnrichment

Updated: 2024-08-04T00:19:48.036Z

cve-icon NVD

Status : Modified

Published: 2021-10-06T20:15:08.490

Modified: 2024-11-21T06:10:58.427

Link: CVE-2021-34698

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses