Nginx Instance Manager
CVE-2023-28656
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
|
| Impact | CVSS score of 8.1 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system. |
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Alert meAnalysisAI
NGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
This vulnerability is classified under CWE-639. NGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. Affected products include: Netapp Cloud Backup, Netapp Ontap Select Deploy, F5 Nginx Api Connectivity Manager, F5 Nginx Instance Manager, F5 Nginx Security Monitoring.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
NGINX Management Suite may allow an authenticated attacker to gain access to configuration objects outside of their assigned environment.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
More in Nginx Instance Manager
View allNGINX Management Suite default file permissions are set such that an authenticated attacker may be able to modify sensit
NGINX Agent's "config_dirs" restriction feature allows a highly privileged attacker to gain the ability to write/overwri
In versions 2.x before 2.3.1 and all versions of 1.x, when NGINX Instance Manager is in use, undisclosed requests can ca
NGINX proxy configurations forwarding traffic to upstream TLS servers can be exploited by network-positioned attackers t
Insertion of Sensitive Information into log file vulnerability in NGINX Agent. Rated medium severity (CVSS 5.5), this vu
Path traversal in F5 NGINX Agent via the config_dirs directive enables a remotely authenticated low-privileged attacker
A session fixation issue was discovered in the NGINX OpenID Connect reference implementation, where a nonce was not chec
GitHub PoC
Exploit-DB