Cyber Resilience

CVE-2023-39110

SSRF in Rconfig 3.9.4

Public PoCSSRF
Published
01 August 2023
Modified
21 November 2024
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.031 87th percentile
Risk Priority 90 floored blend · peak EPSS

Summary

CVE-2023-39110 is a high-severity SSRF (CWE-918) vulnerability in Rconfig Rconfig. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 13% 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.

rconfig version 3.9.4 contains a server-side request forgery vulnerability in the path parameter of /ajaxGetFileByPath.php. The flaw, tracked as CVE-2023-39110 and assigned CWE-918, permits an authenticated user to supply crafted URLs that cause the application to issue arbitrary requests to internal or external resources. It received a CVSS 3.1 score of 8.8 reflecting network attack vector, low complexity, and high impact across confidentiality, integrity, and availability.

An authenticated attacker with network access can exploit the issue without user interaction to reach otherwise inaccessible systems, retrieve sensitive data, or abuse the server as a proxy for further attacks. The EPSS score stands at 0.8015 with an identical recorded peak, indicating sustained exploitation interest since disclosure.

Public references consist of technical write-ups hosted on GitHub that demonstrate the request forgery but contain no official vendor guidance on patches or configuration changes.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

rconfig v3.9.4 was discovered to contain a Server-Side Request Forgery (SSRF) via the path parameter at /ajaxGetFileByPath.php. This vulnerability allows authenticated attackers to make arbitrary requests via injection of crafted URLs.

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.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-39108Same product: Rconfig Rconfig
CVE-2023-39109Same product: Rconfig Rconfig
CVE-2020-10546Same product: Rconfig Rconfig
CVE-2020-10220Same product: Rconfig Rconfig
CVE-2020-12255Same product: Rconfig Rconfig
CVE-2020-10879Same product: Rconfig Rconfig
CVE-2019-19509Same product: Rconfig Rconfig
CVE-2020-10221Same product: Rconfig Rconfig
CVE-2019-16662Same product: Rconfig Rconfig
CVE-2019-16663Same product: Rconfig Rconfig

Affected Assets

rconfig
rconfig
3.9.4

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)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

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-918

Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.

addresses: CWE-918

Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.

addresses: CWE-918

Validates server-side URLs and resource references to block SSRF attempts.

addresses: CWE-918

Detects server-side request forgery through monitoring of unexpected outbound connections.

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

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

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.

prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References