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CVE-2024-20279

MEDIUMCVSS 4.3/10EPSS 0.32%

Last modified

CVE-2024-20279 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A vulnerability in the restricted security domain implementation of Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to modify the behavior of default system policies, such as quality of service (QoS) policies, on an affected system. This vulnerability is due to improper access control when restricted security domains are used to implement multi-tenancy. An attacker with a valid user account associated with a restricted security domain could exploit this vulnerability. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

A vulnerability in the restricted security domain implementation of Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to modify the behavior of default system policies, such as quality of service (QoS) policies, on an affected system. This vulnerability is due to improper access control when restricted security domains are used to implement multi-tenancy. An attacker with a valid user account associated with a restricted security domain could exploit this vulnerability. A successful exploit could allow the attacker to read, modify, or delete child policies created under default system policies, which are implicitly used by all tenants in the fabric, resulting in disruption of network traffic. Exploitation is not possible for policies under tenants that an attacker has no authorization to access.

Metrics

CVSS 3.1
4.3/10

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

EPSS Probability
0.32%

23.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoApplication Policy Infrastructure Controller1.1\(1d\)
CiscoApplication Policy Infrastructure Controller1.1\(1j\)
CiscoApplication Policy Infrastructure Controller1.1\(1n\)
CiscoApplication Policy Infrastructure Controller1.1\(1o\)
CiscoApplication Policy Infrastructure Controller1.1\(1r\)
CiscoApplication Policy Infrastructure Controller1.1\(1s\)
CiscoApplication Policy Infrastructure Controller1.1\(2h\)
CiscoApplication Policy Infrastructure Controller1.1\(2i\)
CiscoApplication Policy Infrastructure Controller1.1\(3f\)
CiscoApplication Policy Infrastructure Controller1.1\(4e\)
CiscoApplication Policy Infrastructure Controller1.1\(4f\)
CiscoApplication Policy Infrastructure Controller1.1\(4g\)
CiscoApplication Policy Infrastructure Controller1.1\(4i\)
CiscoApplication Policy Infrastructure Controller1.1\(4l\)
CiscoApplication Policy Infrastructure Controller1.1\(4m\)
CiscoApplication Policy Infrastructure Controller1.2\(1h\)
CiscoApplication Policy Infrastructure Controller1.2\(1i\)
CiscoApplication Policy Infrastructure Controller1.2\(1k\)
CiscoApplication Policy Infrastructure Controller1.2\(1m\)
CiscoApplication Policy Infrastructure Controller1.2\(2g\)
CiscoApplication Policy Infrastructure Controller1.2\(2h\)
CiscoApplication Policy Infrastructure Controller1.2\(2i\)
CiscoApplication Policy Infrastructure Controller1.2\(2j\)
CiscoApplication Policy Infrastructure Controller1.2\(3c\)
CiscoApplication Policy Infrastructure Controller1.2\(3e\)
CiscoApplication Policy Infrastructure Controller1.2\(3h\)
CiscoApplication Policy Infrastructure Controller1.2\(3m\)
CiscoApplication Policy Infrastructure Controller1.3\(1g\)
CiscoApplication Policy Infrastructure Controller1.3\(1h\)
CiscoApplication Policy Infrastructure Controller1.3\(1i\)
CiscoApplication Policy Infrastructure Controller1.3\(1j\)
CiscoApplication Policy Infrastructure Controller1.3\(2f\)
CiscoApplication Policy Infrastructure Controller1.3\(2h\)
CiscoApplication Policy Infrastructure Controller1.3\(2i\)
CiscoApplication Policy Infrastructure Controller1.3\(2j\)
CiscoApplication Policy Infrastructure Controller1.3\(2k\)
CiscoApplication Policy Infrastructure Controller2.0\(1k\)
CiscoApplication Policy Infrastructure Controller2.0\(1l\)
CiscoApplication Policy Infrastructure Controller2.0\(1m\)
CiscoApplication Policy Infrastructure Controller2.0\(1n\)
CiscoApplication Policy Infrastructure Controller2.0\(1o\)
CiscoApplication Policy Infrastructure Controller2.0\(1p\)
CiscoApplication Policy Infrastructure Controller2.0\(1q\)
CiscoApplication Policy Infrastructure Controller2.0\(1r\)
CiscoApplication Policy Infrastructure Controller2.0\(2f\)
CiscoApplication Policy Infrastructure Controller2.0\(2g\)
CiscoApplication Policy Infrastructure Controller2.0\(2h\)
CiscoApplication Policy Infrastructure Controller2.0\(2l\)
CiscoApplication Policy Infrastructure Controller2.0\(2m\)
CiscoApplication Policy Infrastructure Controller2.0\(2n\)

Showing 50 of 221 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20279?
A vulnerability in the restricted security domain implementation of Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to modify the behavior of default system policies, such as quality of service (QoS) policies, on an affected system. This vulnerability is due to improper access control when restricted security domains are used to implement multi-tenancy. An attacker with a valid user account associated with a restricted security domain could exploit this vulnerability. A successful exploit could allow the attacker to read, modify, or delete child policies created under default system policies, which are implicitly used by all tenants in the fabric, resulting in disruption of network traffic. Exploitation is not possible for policies under tenants that an attacker has no authorization to access.
How severe is CVE-2024-20279?
CVE-2024-20279 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20279?
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-2024-20279?

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

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Source: NVD / NIST