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CVE-2021-1579

HIGHCVSS 8.8/10EPSS 2.13%

Last modified

CVE-2021-1579 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability in an API endpoint of Cisco Application Policy Infrastructure Controller (APIC) and Cisco Cloud Application Policy Infrastructure Controller (Cloud APIC) could allow an authenticated, remote attacker with Administrator read-only credentials to elevate privileges on an affected system. This vulnerability is due to an insufficient role-based access control (RBAC). EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

A vulnerability in an API endpoint of Cisco Application Policy Infrastructure Controller (APIC) and Cisco Cloud Application Policy Infrastructure Controller (Cloud APIC) could allow an authenticated, remote attacker with Administrator read-only credentials to elevate privileges on an affected system. This vulnerability is due to an insufficient role-based access control (RBAC). An attacker with Administrator read-only credentials could exploit this vulnerability by sending a specific API request using an app with admin write credentials. A successful exploit could allow the attacker to elevate privileges to Administrator with write privileges on the affected device.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
2.13%

79.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoApplication Policy Infrastructure Controller< 3.2\(10f\)
CiscoApplication Policy Infrastructure Controller>= 4.0, < 4.2\(7l\)
CiscoApplication Policy Infrastructure Controller>= 5.0, < 5.2\(2f\)
CiscoCloud Application Policy Infrastructure Controller< 3.2\(10f\)
CiscoCloud Application Policy Infrastructure Controller>= 4.0, < 4.2\(7l\)
CiscoCloud Application Policy Infrastructure Controller>= 5.0, < 5.2\(2f\)

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1579?
A vulnerability in an API endpoint of Cisco Application Policy Infrastructure Controller (APIC) and Cisco Cloud Application Policy Infrastructure Controller (Cloud APIC) could allow an authenticated, remote attacker with Administrator read-only credentials to elevate privileges on an affected system. This vulnerability is due to an insufficient role-based access control (RBAC). An attacker with Administrator read-only credentials could exploit this vulnerability by sending a specific API request using an app with admin write credentials. A successful exploit could allow the attacker to elevate privileges to Administrator with write privileges on the affected device.
How severe is CVE-2021-1579?
CVE-2021-1579 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1579?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1579?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST