Cyber Resilience

CVE-2023-30805

RCE in Sangfor Next-Gen Application Firewall 8.0.17

Public PoCHigh EPSSRCECommand Injection
Published
10 October 2023
Modified
28 November 2025
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.66 99.2th percentile
Risk Priority 95 floored blend · peak EPSS

Summary

CVE-2023-30805 is a critical-severity OS Command Injection (CWE-78) vulnerability in Sangfor Next-Gen Application Firewall. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 0.8% 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.

The vulnerability CVE-2023-30805 is an operating system command injection flaw in Sangfor Next-Gen Application Firewall version NGAF8.0.17. It arises from mishandling of shell meta-characters in the "un" parameter of the /LogInOut.php endpoint, which is reachable over the network.

A remote unauthenticated attacker can exploit the issue by submitting a crafted HTTP POST request, resulting in arbitrary operating system command execution. Successful exploitation grants full control over the affected appliance, with impacts spanning confidentiality, integrity, and availability as scored under CVSS 9.8.

The associated EPSS score rose from a low baseline to a peak of 0.1875 (current value 0.1485), indicating that exploitation interest increased after public disclosure. Public analyses from researchers have detailed the unauthenticated remote code execution path in this widely deployed firewall product.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an operating system command injection vulnerability. A remote and unauthenticated attacker can execute arbitrary commands by sending a crafted HTTP POST request to the /LogInOut.php endpoint. This is due to…

more

mishandling of shell meta-characters in the "un" parameter.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
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.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-30806Same product: Sangfor Next-Gen Application Firewall
CVE-2023-30802Same product: Sangfor Next-Gen Application Firewall
CVE-2023-30804Same product: Sangfor Next-Gen Application Firewall
CVE-2023-30803Same product: Sangfor Next-Gen Application Firewall
CVE-2025-15500Same vendor: Sangfor
CVE-2026-1324Same vendor: Sangfor
CVE-2025-15499Same vendor: Sangfor
CVE-2025-15502Same vendor: Sangfor
CVE-2025-15501Same vendor: Sangfor
CVE-2024-0292Shared CWE-78

Affected Assets

sangfor
next-gen application firewall
8.0.17

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)
  • V1.2.5
  • V1.2.8
  • V15.2.5

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.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

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-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

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.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References