Home/CVE/A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remo
CVE

CVE-2021-1384

A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remo

A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands into the underlying operating system as the root user. This vulnerability is due to incomplete validation of fields in the application packages loaded onto IOx. An attacker could exploit this vulnerability by creating a crafted application .tar file and loading it onto the device.

A successful exploit could allow the attacker to perform command injection into the underlying operating system as the root user.

MEDIUM · CVSS 6.5 EPSS 0.14294
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0

Affected Products & Versions

5
cisco ios xe< 16.6.9
cisco ios xe>= 16.9.0 and < 16.9.7
cisco ios xe>= 17.3.2 and < 17.3.3
cisco ios xe>= 17.4.0 and < 17.4.2
cisco ios xeall versions

Public Exploits & PoCs

1

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Mar 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

1
cisco-csafcisco-sa-iox-cmdinj-RkSURGHG
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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