CVE & CISA-KEV Catalog

CVE-2021-1306

MEDIUM
4.4
CVSS v3
NVD

Description

A vulnerability in the restricted shell of Cisco Evolved Programmable Network (EPN) Manager, Cisco Identity Services Engine (ISE), and Cisco Prime Infrastructure could allow an authenticated, local attacker to identify directories and write arbitrary files to the file system. This vulnerability is due to improper validation of parameters that are sent to a CLI command within the restricted shell. An attacker could exploit this vulnerability by logging in to the device and issuing certain CLI commands. A successful exploit could allow the attacker to identify file directories on the affected device and write arbitrary files to the file system on the affected device. To exploit this vulnerability, the attacker must be an authenticated shell user.

How to fix

Remediation Available
evolved programmable network managerNVD
Affected:< 5.0.1Fixed in:5.0.1CVE-2021-1306derived from NVD
identity services engineNVD
Affected:< 2.7.0Fixed in:2.7.0CVE-2021-1306derived from NVD
prime infrastructureNVD
Affected:< 3.8.1Fixed in:3.8.1CVE-2021-1306derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.21%probability of exploitation in 30 days
12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-73 (External Control of File Name or Path) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-39952Critical9.8100%-Fix
CVE-2024-8517Critical9.895%-Fix
CVE-2023-4634Critical9.883%-Fix
CVE-2018-17246Critical9.882%-Fix
CVE-2024-43451Medium6.582%KEVFix
CVE-2025-33053High8.882%KEVFix
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CVE-2021-1306 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.