CVE-2019-1884CWE-20

Cisco Web Security Appliance Web Proxy Denial of Service Vulnerability

High · published July 4, 2019

CVSS v3.0
7.7
EPSS
2%
Percentile
74.3
In the wild
Unconfirmed
What it is

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition.

The record
Technical detail
CVSS v3.0
7.7 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01513 · 74.3th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2019-07-04T19:50Z
EPSS history
Timeline
  • 04 JUL 19:50Z
    Cisco Web Security Appliance Web Proxy Denial of Service Vulnerability
    cvelistv5