FKIE_CVE-2021-22948

Vulnerability from fkie_nvd - Published: 2021-09-23 13:15 - Updated: 2026-06-17 03:38
Severity
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Summary
Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.
References
support@hackerone.comhttps://hackerone.com/reports/1187820Exploit, Third Party Advisory
support@hackerone.comhttps://www.revive-adserver.com/security/revive-sa-2021-005/Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1187820Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.revive-adserver.com/security/revive-sa-2021-005/Patch, Vendor Advisory
Impacted products
Vendor Product Version
revive-adserver revive_adserver *
revive-adserver revive_adserver 5.3.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "https://github.com/revive-adserver/revive-adserver",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed version v5.3.0"
            }
          ]
        }
      ],
      "source": "support@hackerone.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "83BEB88E-698A-452B-8523-F8FB093C7AE6",
              "versionEndExcluding": "5.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:revive-adserver:revive_adserver:5.3.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "842527A6-A5A8-4FBA-A52C-51F19EFA2B6B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the generation of session IDs in revive-adserver \u003c 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la generaci\u00f3n de IDs de sesi\u00f3n en revive-adserver versiones anteriores a 5.3.0, basada en la funci\u00f3n PHP uniqid() criptogr\u00e1ficamente no segura. Bajo algunas circunstancias, un atacante podr\u00eda te\u00f3ricamente ser capaz de forzar los ID de sesi\u00f3n para hacerse con una cuenta espec\u00edfica"
    }
  ],
  "id": "CVE-2021-22948",
  "lastModified": "2026-06-17T03:38:05.443",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-09-23T13:15:08.760",
  "references": [
    {
      "source": "support@hackerone.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/1187820"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.revive-adserver.com/security/revive-sa-2021-005/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/1187820"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.revive-adserver.com/security/revive-sa-2021-005/"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "support@hackerone.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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