What is CVE-2019-1817?

CVE-2019-1817 is a high-severity vulnerability in Cisco Web Security Appliance (Wsa), classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-05-03.

How severe is CVE-2019-1817?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Cisco Web Security Appliance (Wsa)

CVE-2019-1817

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.018 (76.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cisco Web Security Appliance (Wsa) — versions unspecified, unspecified
Cisco Web_security_appliance — versions 11.5.1-fcs-115, 11.5.1-fcs-124, 11.5.1-fcs-125

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2019-1817?: CVE-2019-1817 is a high-severity vulnerability in Cisco Web Security Appliance (Wsa), classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-05-03.
How severe is CVE-2019-1817?: High severity. CVSS v3 base score is 7.5 out of 10.