fkie_cve-2023-43650
Vulnerability from fkie_nvd
Published
2023-09-27 19:15
Modified
2025-03-25 20:15
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
JumpServer is an open source bastion host. The verification code for resetting user's password is vulnerable to brute-force attacks due to the absence of rate limiting. JumpServer provides a feature allowing users to reset forgotten passwords. Affected users are sent a 6-digit verification code, ranging from 000000 to 999999, to facilitate the password reset. Although the code is only available in 1 minute, this window potentially allows for up to 1,000,000 validation attempts. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References
security-advisories@github.comhttps://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvwExploit, Vendor Advisory
security-advisories@github.comhttps://www.sonarsource.com/blog/diving-into-jumpserver-attackers-gateway-to-internal-networks-1-2
af854a3a-2127-422b-91ae-364da2661108https://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvwExploit, Vendor Advisory
Impacted products
Vendor Product Version
fit2cloud jumpserver *
fit2cloud jumpserver *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "AF95C421-E2B7-4251-8BAF-E83A5779A9F0",
                     versionEndExcluding: "2.28.20",
                     versionStartIncluding: "2.0.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "4232B350-4257-43B9-A697-AFA6D8247B1E",
                     versionEndExcluding: "3.7.1",
                     versionStartIncluding: "3.0.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "JumpServer is an open source bastion host. The verification code for resetting user's password is vulnerable to brute-force attacks due to the absence of rate limiting. JumpServer provides a feature allowing users to reset forgotten passwords. Affected users are sent a 6-digit verification code, ranging from 000000 to 999999, to facilitate the password reset. Although the code is only available in 1 minute, this window potentially allows for up to 1,000,000 validation attempts. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
      },
      {
         lang: "es",
         value: "JumpServer es un host de bastionado de código abierto. El código de verificación para restablecer la contraseña del usuario es vulnerable a ataques de fuerza bruta debido a la ausencia de rate limiting. JumpServer proporciona una función que permite a los usuarios restablecer contraseñas olvidadas. Los usuarios afectados reciben un código de verificación de 6 dígitos, que va del 000000 al 999999, para facilitar el restablecimiento de la contraseña. Aunque el código sólo está disponible en 1 minuto, esta ventana permite potencialmente hasta 1.000.000 de intentos de validación. Este problema se solucionó en las versiones 2.28.20 y 3.7.1. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.",
      },
   ],
   id: "CVE-2023-43650",
   lastModified: "2025-03-25T20:15:19.257",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 8.2,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "LOW",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 4.2,
            source: "security-advisories@github.com",
            type: "Secondary",
         },
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 7.4,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
               version: "3.1",
            },
            exploitabilityScore: 2.2,
            impactScore: 5.2,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2023-09-27T19:15:11.927",
   references: [
      {
         source: "security-advisories@github.com",
         tags: [
            "Exploit",
            "Vendor Advisory",
         ],
         url: "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvw",
      },
      {
         source: "security-advisories@github.com",
         url: "https://www.sonarsource.com/blog/diving-into-jumpserver-attackers-gateway-to-internal-networks-1-2",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Exploit",
            "Vendor Advisory",
         ],
         url: "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-mwx4-8fwc-2xvw",
      },
   ],
   sourceIdentifier: "security-advisories@github.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-640",
            },
         ],
         source: "security-advisories@github.com",
         type: "Secondary",
      },
   ],
}


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