github - ghsa-rhrw-79v5-jc5x

GHSA-RHRW-79V5-JC5X

Vulnerability from github – Published: 2025-07-02 21:32 – Updated: 2025-09-16 21:31

Details

An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise.

This capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34079"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-02T20:15:29Z",
    "severity": "HIGH"
  },
  "details": "An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise.\n\nThis capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.",
  "id": "GHSA-rhrw-79v5-jc5x",
  "modified": "2025-09-16T21:31:16Z",
  "published": "2025-07-02T21:32:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34079"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/nscp_authenticated_rce.rb"
    },
    {
      "type": "WEB",
      "url": "https://vulncheck.com/advisories/nsclient-localtoremote-system-compromise"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/48360"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-34079 (GCVE-0-2025-34079)

Vulnerability from cvelistv5 – Published: 2025-07-02 19:27 – Updated: 2025-11-29 15:29

Title

NSClient++ Authenticated Remote Code Execution via ExternalScripts API

Summary

Severity ?

7.5 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')
CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck

References

URL

Tags

	https://raw.githubusercontent.com/rapid7/metasplo…	exploit
	https://www.exploit-db.com/exploits/48360	exploit
	https://vulncheck.com/advisories/nsclient-localto…	third-party-advisory

Impacted products

	Vendor	Product	Version
	NSClient++	NSClient++	Affected: 0.5.2.35

Credits

kindredsec Yann Castel

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-RHRW-79V5-JC5X

CVE-2025-34079 (GCVE-0-2025-34079)

Tags

Sightings

Nomenclature