Vulnerability Name:

CVE-2021-1578 (CCN-208193)

Assigned:2020-11-13
Published:2021-08-25
Updated:2021-09-01
Summary: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 to elevate privileges to Administrator on an affected device. This vulnerability is due to an improper policy default setting. An attacker could exploit this vulnerability by using a non-privileged credential for Cisco ACI Multi-Site Orchestrator (MSO) to send a specific API request to a managed Cisco APIC or Cloud APIC device. A successful exploit could allow the attacker to obtain Administrator credentials on the affected device.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.0 High (CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-755
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-1578

Source: XF
Type: UNKNOWN
cisco-cve20211578-priv-esc(208193)

Source: CCN
Type: Cisco Security Advisory cisco-sa-capic-pesc-pkmGK4J
Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability

Source: CISCO
Type: Vendor Advisory
20210825 Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:application_policy_infrastructure_controller:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.1(3e))
  • OR cpe:/a:cisco:application_policy_infrastructure_controller:5.0(2h):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:cloud_application_policy_infrastructure_controller:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.1(3e))
  • OR cpe:/a:cisco:cloud_application_policy_infrastructure_controller:5.0(2h):*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:application_policy_infrastructure_controller_(apic):1.0(1e):*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco application policy infrastructure controller *
    cisco application policy infrastructure controller 5.0(2h)
    cisco cloud application policy infrastructure controller *
    cisco cloud application policy infrastructure controller 5.0(2h)
    cisco application policy infrastructure controller (apic) 1.0(1e)