CVE-2018-0410

Description

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliances could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected software improperly manages memory resources for TCP connections to a targeted device. An attacker could exploit this vulnerability by establishing a high number of TCP connections to the data interface of an affected device via IPv4 or IPv6. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and result in a DoS condition. System recovery may require manual intervention. Cisco Bug IDs: CSCvf36610.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.25% Top 20%
Vendor Advisory cisco.com
Affected: Cisco Systems, Inc. AsyncOS Software for Cisco Web Security Appliances
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105098 third party advisory vdb entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-wsa-dos vendor advisory
http://www.securitytracker.com/id/1041535 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-0410?
CVE-2018-0410 has been scored as a high severity vulnerability.
How to fix CVE-2018-0410?
To fix CVE-2018-0410, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0410 being actively exploited in the wild?
It is possible that CVE-2018-0410 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0410?
CVE-2018-0410 affects Cisco Systems, Inc. AsyncOS Software for Cisco Web Security Appliances.
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