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CVE-2024-20279

Cisco Application Policy Infrastructure Controller Unauthorized Policy Actions Vulnerability

MEDIUM
4.3
CVSS Score
Published: August 28, 2024 at 04:19 PM UTC
Updated: June 17, 2026 at 07:06 AM UTC
1 product affected across 1 vendorApplication Policy Infrastructure Controller

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Application Policy Infrastructure Controller· Cisco
95%
1.1(1d)1.1(1j)1.1(1n)1.1(1o)1.1(1r)1.1(1s)1.1(2h)1.1(2i)1.1(3f)1.1(4e)1.1(4f)1.1(4g)1.1(4i)1.1(4l)1.1(4m)1.2(1h)1.2(1i)1.2(1k)1.2(1m)1.2(2g)1.2(2h)1.2(2i)1.2(2j)1.2(3c)1.2(3e)1.2(3h)1.2(3m)1.3(1g)1.3(1h)1.3(1i)1.3(1j)1.3(2f)1.3(2h)1.3(2i)1.3(2j)1.3(2k)2.0(1k)2.0(1l)2.0(1m)2.0(1n)2.0(1o)2.0(1p)2.0(1q)2.0(1r)2.0(2f)2.0(2g)2.0(2h)2.0(2l)2.0(2m)2.0(2n)2.0(2o)2.1(1h)2.1(1i)2.1(2e)2.1(2f)2.1(2g)2.1(2k)2.1(3g)2.1(3h)2.1(3j)2.1(4a)2.2(1k)2.2(1n)2.2(1o)2.2(2e)2.2(2f)2.2(2i)2.2(2j)2.2(2k)2.2(2q)2.2(3j)2.2(3p)2.2(3r)2.2(3s)2.2(3t)2.2(4f)2.2(4p)2.2(4q)2.2(4r)2.3(1e)2.3(1f)2.3(1i)2.3(1l)2.3(1o)2.3(1p)3.0(1i)3.0(1k)3.0(2h)3.0(2k)3.0(2m)3.0(2n)3.1(1i)3.1(2m)3.1(2o)3.1(2p)3.1(2q)3.1(2s)3.1(2t)3.1(2u)3.1(2v)3.2(10e)3.2(10f)3.2(10g)3.2(1l)3.2(1m)3.2(2l)3.2(2o)3.2(3i)3.2(3j)3.2(3n)3.2(3o)3.2(3r)3.2(3s)3.2(41d)3.2(4d)3.2(4e)3.2(5d)3.2(5e)3.2(5f)3.2(6i)3.2(7f)3.2(7k)3.2(8d)3.2(9b)3.2(9f)3.2(9h)4.0(1h)4.0(2c)4.0(3c)4.0(3d)4.1(1a)4.1(1i)4.1(1j)4.1(1k)4.1(1l)4.1(2g)4.1(2m)4.1(2o)4.1(2s)4.1(2u)4.1(2w)4.1(2x)4.2(1g)4.2(1i)4.2(1j)4.2(1l)4.2(2e)4.2(2f)4.2(2g)4.2(3j)4.2(3l)4.2(3n)4.2(3q)4.2(4i)4.2(4k)4.2(4o)4.2(4p)4.2(5k)4.2(5l)4.2(5n)4.2(6d)4.2(6g)4.2(6h)4.2(6l)4.2(6o)4.2(7f)4.2(7l)4.2(7q)4.2(7r)4.2(7s)4.2(7t)4.2(7u)4.2(7v)4.2(7w)5.0(1k)5.0(1l)5.0(2e)5.0(2h)5.1(1h)5.1(2e)5.1(3e)5.1(4c)5.2(1g)5.2(2e)5.2(2f)5.2(2g)5.2(2h)5.2(3e)5.2(3f)5.2(3g)5.2(4d)5.2(4e)5.2(4f)5.2(4h)5.2(5c)5.2(5d)5.2(5e)5.2(6e)5.2(6g)5.2(6h)5.2(7f)5.2(7g)5.2(8d)5.2(8e)5.2(8f)5.2(8g)5.2(8h)5.2(8i)5.3(1d)5.3(2a)5.3(2b)6.0(1g)6.0(1j)6.0(2h)6.0(2j)6.0(3d)6.0(3e)6.0(3g)6.0(4c)6.0(5h)6.0(5j)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-cousmo-uBpBYGbq

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284

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