CVE-2021-1403CWE-345

Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability

High · published March 24, 2021

CVSS v3.1
7.4
EPSS
1%
Percentile
49.1
In the wild
Unconfirmed
What it is

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site WebSocket hijacking (CSWSH) attack and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient HTTP protections in the web UI on an affected device. An attacker could exploit this vulnerability by persuading an authenticated user of the web UI to follow a crafted link. A successful exploit could allow the attacker to corrupt memory on the affected device, forcing it to reload and causing a DoS condition.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00621 · 49.1th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2021-03-24T20:07Z
EPSS history
Timeline
  • 24 MAR 20:07Z
    Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability
    cvelistv5