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Application Policy Infrastructure Controller CVE-2017-6767

HIGH
Improper Privilege Management (CWE-269)
2017-08-17 psirt@cisco.com
7.1
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.1 (HIGH). Attack characteristics: network attack vector, high complexity, low privileges required, user interaction required. EPSS exploitation probability: 0.89%.

Exploit ScenarioDerived

A remote attacker could escalate privileges to gain unauthorized elevated access by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAI

A vulnerability in Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to gain higher privileges than the account is assigned. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply principle of least privilege, validate privilege transitions, implement proper role separation.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Privilege Management (CWE-269), which allows attackers to escalate privileges to gain unauthorized elevated access. A vulnerability in Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to gain higher privileges than the account is assigned. The attacker will be granted the privileges of the last user to log in, regardless of whether those privileges are higher or lower than what should have been granted. The attacker cannot gain root-level privileges. The vulnerability is due to a limitation with how Role-Based Access Control (RBAC) grants privileges to remotely authenticated users when login occurs via SSH directly to the local management interface of the APIC. An attacker could exploit this vulnerability by authenticating to the targeted device. The attacker's privilege level will be modified to match that of the last user to log in via SSH. An exploit could allow the attacker to gain elevated privileges and perform CLI commands that should be restricted by the attacker's configured role. Cisco Bug IDs: CSCvc34335. Known Affected Releases: 1.0(1e), 1.0(1h), 1.0(1k), 1.0(1n), 1.0(2j), 1.0(2m), 1.0(3f), 1.0(3i), 1.0(3k), 1.0(3n), 1.0(4h), 1.0(4o); 1.1(0.920a), 1.1(1j), 1.1(3f); 1.2 Base, 1.2(2), 1.2(3), 1.2.2; 1.3(1), 1.3(2), 1.3(2f); 2.0 Base, 2.0(1). Affected products include: Cisco Application Policy Infrastructure Controller.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.1 HIGH
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

A vulnerability in Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to gain higher privileges than the account is assigned. The attacker will be granted the privileges of the last user to log in, regardless of whether those privileges are higher or lower than what should have been granted. The attacker cannot gain root-level privileges. The vulnerability is due to a limitation with how Role-Based Access Control (RBAC) grants privileges to remotely authenticated users when login occurs via SSH directly to the local management interface of the APIC. An attacker could exploit this vulnerability by authenticating to the targeted device. The attacker's privilege level will be modified to match that of the last user to log in via SSH. An exploit could allow the attacker to gain elevated privileges and perform CLI commands that should be restricted by the attacker's configured role. Cisco Bug IDs: CSCvc34335. Known Affected Releases: 1.0(1e), 1.0(1h), 1.0(1k), 1.0(1n), 1.0(2j), 1.0(2m), 1.0(3f), 1.0(3i), 1.0(3k), 1.0(3n), 1.0(4h), 1.0(4o); 1.1(0.920a), 1.1(1j), 1.1(3f); 1.2 Base, 1.2(2), 1.2(3), 1.2.2; 1.3(1), 1.3(2), 1.3(2f); 2.0 Base, 2.0(1).

Threat Intelligence Overview

EPSS Score
0.9%
Top 24% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.9%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Affected Products (CPE)CVE.org

cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1e\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1h\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1k\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1n\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(2j\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(2m\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3f\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3i\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3k\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3n\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(4h\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(4o\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(0.920a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(1j\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(3f\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2\(3\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.3\(1\):*:*:*:*:*:*:*
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