Improper access control in Cisco Application Policy Infrastructure Controller and Cisco Cloud Application Policy Infrastructure Controller - CVE-2021-1577

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Main Vulnerability Database Vulnerabilities #VU56111

Improper access control in Cisco Application Policy Infrastructure Controller and Cisco Cloud Application Policy Infrastructure Controller - CVE-2021-1577

Published: August 26, 2021


Vulnerability identifier: #VU56111
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1577
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in an API endpoint. A remote attacker can use a specific API endpoint to upload a file and read or write arbitrary files on an affected device.


Affected software

Cisco Application Policy Infrastructure Controller
Cisco Cloud Application Policy Infrastructure Controller

How to mitigate CVE-2021-1577

Install updates from vendor's website.

Cisco Application Policy Infrastructure Controller - addressed in versions 3.2.10e, 4.2.6h, 5.1.3e
Cisco Cloud Application Policy Infrastructure Controller - addressed in versions 3.2.10e, 4.2.6h, 5.1.3e

External References

Related Security Bulletins