Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
CVE-2019-1817

8.6HIGH

Key Information:

Vendor
Cisco
Status
Cisco Web Security Appliance (wsa)
Vendor
CVE Published:
3 May 2019

Badges

👾 Exploit Exists

Summary

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition.

Affected Version(s)

Cisco Web Security Appliance (WSA) < 11.5.2-020

Cisco Web Security Appliance (WSA) < 11.7.0-406

References

https://tools.cisco.com/security/center/content/CiscoSecu...
vendor-advisoryx_refsource_CISCO

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.