Vulnerability-Lookup

CVE-2012-10039 (GCVE-0-2012-10039)

Vulnerability from cvelistv5 – Published: 2025-08-11 14:55 – Updated: 2026-04-07 14:02 Unsupported When Assigned

Title

ZEN Load Balancer Filelog Command Execution

Summary

ZEN Load Balancer versions 2.0 and 3.0-rc1 contain a command injection vulnerability in content2-2.cgi. The filelog parameter is passed directly into a backtick-delimited exec() call without sanitation. An authenticated attacker can inject arbitrary shell commands, resulting in remote code execution as the root user. ZEN Load Balancer is the predecessor of ZEVENET and SKUDONET. The affected versions (2.0 and 3.0-rc1) are no longer supported. SKUDONET CE is the current community-maintained successor.

Severity

9.4 (Critical)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-11 15:41 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7605 records in the last 180 days details

References

5 references

URL	Tags
https://web.archive.org/web/20221203195056/https:…	technical-descriptionexploit
https://web.archive.org/web/20111015031540/http:/…	product
https://raw.githubusercontent.com/rapid7/metasplo…	exploit
https://www.exploit-db.com/exploits/21849	exploit
https://www.fortiguard.com/encyclopedia/ips/33335…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
ZEN Load Balancer	ZEN Load Balancer	Affected: 2.0 Affected: 3.0-rc1 cpe:2.3:a:zevenet:zen_load_balancer:2.0:::::::* cpe:2.3:a:zevenet:zen_load_balancer:3.0:::::::*

Date Public

2012-10-10 00:00

Credits

bcoles

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2012-10039

Vulnerability from fkie_nvd - Published: 2025-08-11 15:15 - Updated: 2026-06-16 23:38

Severity

9.4 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/zen_load_balancer_exec.rb
	disclosure@vulncheck.com	https://web.archive.org/web/20111015031540/http://www.zenloadbalancer.com/
	disclosure@vulncheck.com	https://web.archive.org/web/20221203195056/https://itsecuritysolutions.org/2012-09-21-ZEN-Load-Balancer-v2.0-and-v3.0-rc1-multiple-vulnerabilities/
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/21849
	disclosure@vulncheck.com	https://www.fortiguard.com/encyclopedia/ips/33335/zen-load-balancer-filelog-command-execution

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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        }
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    {
      "lang": "en",
      "value": "ZEN Load Balancer versions 2.0 and 3.0-rc1 contain a command injection vulnerability in content2-2.cgi. The filelog parameter is passed directly into a backtick-delimited exec() call without sanitation. An authenticated attacker can inject arbitrary shell commands, resulting in remote code execution as the root user.\u00a0ZEN Load Balancer is the predecessor of ZEVENET and SKUDONET. The affected versions (2.0 and 3.0-rc1) are no longer supported. SKUDONET CE is the current community-maintained successor."
    },
    {
      "lang": "es",
      "value": "Las versiones 2.0 y 3.0-rc1 de ZEN Load Balancer contienen una vulnerabilidad de inyecci\u00f3n de comandos en content2-2.cgi. El par\u00e1metro filelog se pasa directamente a una llamada exec() delimitada por comillas invertidas sin depuraci\u00f3n. Un atacante autenticado puede inyectar comandos de shell arbitrarios, lo que resulta en la ejecuci\u00f3n remota de c\u00f3digo como usuario root. ZEN Load Balancer es el predecesor de ZEVENET y SKUDONET. Las versiones afectadas (2.0 y 3.0-rc1) ya no reciben soporte. SKUDONET CE es el sucesor actual, mantenido por la comunidad."
    }
  ],
  "id": "CVE-2012-10039",
  "lastModified": "2026-06-16T23:38:43.487",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2012-10039",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-08-11T15:41:44.558442Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-08-11T15:15:27.370",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/zen_load_balancer_exec.rb"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://web.archive.org/web/20111015031540/http://www.zenloadbalancer.com/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://web.archive.org/web/20221203195056/https://itsecuritysolutions.org/2012-09-21-ZEN-Load-Balancer-v2.0-and-v3.0-rc1-multiple-vulnerabilities/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.exploit-db.com/exploits/21849"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.fortiguard.com/encyclopedia/ips/33335/zen-load-balancer-filelog-command-execution"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-V54W-JGW5-2Q48

Vulnerability from github – Published: 2025-08-11 15:32 – Updated: 2025-08-11 15:32

Details

Severity

9.4 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2012-10039"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-11T15:15:27Z",
    "severity": "CRITICAL"
  },
  "details": "ZEN Load Balancer versions 2.0 and 3.0-rc1 contain a command injection vulnerability in content2-2.cgi. The filelog parameter is passed directly into a backtick-delimited exec() call without sanitation. An authenticated attacker can inject arbitrary shell commands, resulting in remote code execution as the root user.\u00a0ZEN Load Balancer is the predecessor of ZEVENET and SKUDONET. The affected versions (2.0 and 3.0-rc1) are no longer supported. SKUDONET CE is the current community-maintained successor.",
  "id": "GHSA-v54w-jgw5-2q48",
  "modified": "2025-08-11T15:32:42Z",
  "published": "2025-08-11T15:32:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-10039"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/zen_load_balancer_exec.rb"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20111015031540/http://www.zenloadbalancer.com"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20221203195056/https://itsecuritysolutions.org/2012-09-21-ZEN-Load-Balancer-v2.0-and-v3.0-rc1-multiple-vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/21849"
    },
    {
      "type": "WEB",
      "url": "https://www.fortiguard.com/encyclopedia/ips/33335/zen-load-balancer-filelog-command-execution"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2012-10039 (GCVE-0-2012-10039)

FKIE_CVE-2012-10039

GHSA-V54W-JGW5-2Q48

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour