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CVE-2023-6004

Full vulnerability record from the local CVENow database.

Description

A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.

Severity
MEDIUM
CVSS score
4.8 (v3.1)
Vulnerability status
Modified
Source identifier
Published
2024-01-03 17:15:11.623000
Last modified
2026-11-06 14:17:01.017000
View original CVE JSON
{
  "id": "CVE-2023-6004",
  "sourceIdentifier": "[email protected]",
  "published": "2024-01-03T17:15:11.623",
  "lastModified": "2026-11-06T14:17:01.017",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
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      "value": "A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en libssh. Al utilizar la función ProxyCommand o ProxyJump, los usuarios pueden explotar la sintaxis del hostname no verificada en el cliente. Este problema puede permitir que un atacante inyecte código malicioso en el comando de las funciones mencionadas a través del parámetro de hostname."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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          "product": "Red Hat Enterprise Linux 8",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "libssh",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::appstream",
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          "versions": [
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              "version": "0:0.9.6-14.el8",
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              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
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          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 7",
          "defaultStatus": "unknown",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "libssh",
          "cpes": [
            "cpe:/o:redhat:rhel_els:7"
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      ]
    }
  ],
  "metrics": {
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        "type": "Secondary",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 3.4
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
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    "ssvcV203": [
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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    {
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  "references": [
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      "url": "https://access.redhat.com/errata/RHSA-2024:2504",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:3233",
      "source": "[email protected]"
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      "source": "[email protected]",
      "tags": [
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2251110",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking"
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    },
    {
      "url": "https://www.libssh.org/security/advisories/CVE-2023-6004.txt",
      "source": "[email protected]",
      "tags": [
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    },
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}