CVEvulnerability

CVE-2019-1886

8.6 HIGH Published 2019-07-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-07-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.0 ([email protected])
8.6 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20, CWE-295

Description

A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Secure Sockets Layer (SSL) server certificates. An attacker could exploit this vulnerability by installing a malformed certificate in a web server and sending a request to it through the Cisco WSA. A successful exploit could allow the attacker to cause an unexpected restart of the proxy process on an affected device.

Affected configurations

• cisco asyncos (>= 10.5 < 10.5.5-005) • cisco asyncos (>= 11.5 < 11.5.2-020) • cisco web security appliance 10.5.2-072 • cisco web security appliance 10.5.3-025 • cisco web security appliance 11.7.0-fcs-334

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-295 Improper Certificate Validation weakness

References