CVE-2021-1403

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

HIGH 7.4

At a glance

Source
NVD
EPSS
EPSS 0.62 % · percentile 50 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

Description

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.

Weaknesses (CWE)

  • CWE-345 — Insufficient Verification of Data Authenticity
  • CWE-1021 — Improper Restriction of Rendered UI Layers or Frames

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:Hcisco
CVSS 3.1HIGH 7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:HNVD · psirt@cisco.com (Secondary)
CVSS 3.1HIGH 7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 7.1AV:N/AC:M/Au:N/C:N/I:N/A:CNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco IOS XE Softwareaffected n/a

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD