Cyber Resilience

CVE-2023-3836

Dahuasecurity Smart Parking Management ≤ 20230713

Public PoCHigh EPSS
Published
22 July 2023
Modified
21 November 2024
CVSS Score v3.1 6.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.74 99.4th percentile
Risk Priority 75 floored blend · peak EPSS

Summary

CVE-2023-3836 is a medium-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Dahuasecurity Smart Parking Management. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-3836 is an unrestricted file upload vulnerability, tracked under CWE-434, that affects the Dahua Smart Park Management platform in versions up to 20230713. The flaw exists in the /emap/devicePoint_addImgIco endpoint when the hasSubsystem parameter is set to true; an attacker can manipulate the upload argument to bypass restrictions and place arbitrary files on the server.

An authenticated remote attacker with low privileges can exploit the issue over the network without user interaction to upload malicious content, achieving limited impacts on confidentiality, integrity, and availability as reflected in the CVSS 6.3 score. The vendor was notified prior to disclosure but provided no response, and a working exploit has been published publicly.

The associated EPSS score currently stands at 0.9145 with a recorded peak of 0.9241, indicating sustained exploitation interest after public release. References such as the GitHub disclosure and Vuldb entries contain further technical details but no vendor-supplied patches or configuration guidance.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A vulnerability classified as critical was found in Dahua Smart Park Management up to 20230713. This vulnerability affects unknown code of the file /emap/devicePoint_addImgIco?hasSubsystem=true. The manipulation of the argument upload leads to unrestricted upload. The attack can be initiated remotely.…

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The exploit has been disclosed to the public and may be used. VDB-235162 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1505 Server Software Component Persistence
Adversaries may abuse legitimate extensible development features of servers to establish persistent access to systems.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1105 Ingress Tool Transfer Command And Control
Adversaries may transfer tools or other files from an external system into a compromised environment.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-3121Same product: Dahuasecurity Smart Parking Management
CVE-2023-31946Shared CWE-434
CVE-2023-25922Shared CWE-434
CVE-2024-49216Shared CWE-434
CVE-2025-8297Shared CWE-434
CVE-2024-35080Shared CWE-434
CVE-2021-30118Shared CWE-434
CVE-2024-29514Shared CWE-434
CVE-2023-3274Shared CWE-434
CVE-2023-5524Shared CWE-434

Affected Assets

dahuasecurity
smart parking management
≤ 20230713

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.1.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-434

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-05 mostly match
prevents

Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.

PR.PS-01 partial match
prevents

Hardened configuration baselines can enforce allowed file types and processing rules.

PR.PS-06 partial match
prevents

Secure development practices include input validation and file-type restrictions that prevent this weakness.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Configuration and acceptance testing verify that file-upload handling enforces allowed types and does not permit dangerous content to be stored or executed.

prevents

Secure-coding guidelines and security testing explicitly address restrictions on allowed file types and upload handling, reducing the risk that dangerous file uploads are accepted without validation.

prevents

Mandated testing for malicious content and known vulnerabilities reduces the likelihood that an outsourced component will contain or accept dangerous file types that could later be uploaded or executed.

mitigates

Application allow-listing and pre-use scanning of received files directly blocks the introduction of executable content that has not been vetted, eliminating the primary vector for unrestricted dangerous file uploads.

References