CVE-2019-5434 (GCVE-0-2019-5434)

Vulnerability from cvelistv5 – Published: 2019-05-06 16:53 – Updated: 2024-08-04 19:54
VLAI KEVintel KEV
Summary
An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-502 - Deserialization of Untrusted Data (CWE-502)
Assigner
References
Impacted products
Vendor Product Version
n/a Revive Adserver Affected: Fixed version v4.2.0
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 0f1cf34e-5329-42dd-b0c7-d4f0957b48f4

Vulnerability ID: CVE-2019-5434

Status: Confirmed

Status Updated: 2026-03-28 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-03-28
Asserted: 2026-03-28
Scope
Notes: KEVIntel entry: An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter... | Affected: Revive Adserver / Revive Adserver | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter...
Vendor Revive Adserver
Product Revive Adserver
Added Date 2026-03-28T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 12:45 UTC | Updated: 2026-06-19 12:45 UTC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T19:54:53.553Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/512076"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/542670"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.revive-adserver.com/security/revive-sa-2019-001/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Revive Adserver",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed version v4.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the \"what\" parameter in the \"openads.spc\" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "Deserialization of Untrusted Data (CWE-502)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-12-05T00:06:15.000Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/512076"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/542670"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.revive-adserver.com/security/revive-sa-2019-001/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2019-5434",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Revive Adserver",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Fixed version v4.2.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the \"what\" parameter in the \"openads.spc\" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Deserialization of Untrusted Data (CWE-502)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/512076",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/512076"
            },
            {
              "name": "https://hackerone.com/reports/542670",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/542670"
            },
            {
              "name": "https://www.revive-adserver.com/security/revive-sa-2019-001/",
              "refsource": "MISC",
              "url": "https://www.revive-adserver.com/security/revive-sa-2019-001/"
            },
            {
              "name": "http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2019-5434",
    "datePublished": "2019-05-06T16:53:33.000Z",
    "dateReserved": "2019-01-04T00:00:00.000Z",
    "dateUpdated": "2024-08-04T19:54:53.553Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-5434",
      "date": "2026-06-19",
      "epss": "0.57022",
      "percentile": "0.98944"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:revive-sas:revive_adserver:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.2.0\", \"matchCriteriaId\": \"D6812BF4-181A-4D04-97E4-70609E587B42\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the \\\"what\\\" parameter in the \\\"openads.spc\\\" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.\"}, {\"lang\": \"es\", \"value\": \"Un atacante podr\\u00eda enviar una carga espec\\u00edficamente creada al script de invocaci\\u00f3n XML-RPC y activar la llamada unserialize() en el par\\u00e1metro \\\"what\\\" en el m\\u00e9todo RPC \\\"openads.spc\\\". Dicha vulnerabilidad podr\\u00eda utilizarse para realizar varios tipos de ataques, por ejemplo, aprovechar las vulnerabilidades de PHP relacionadas con la serializaci\\u00f3n o la inyecci\\u00f3n de objetos PHP. Es posible, aunque no confirmado, que la vulnerabilidad haya sido usada por algunos atacantes  para conseguir acceso a algunas peticiones Revive Adserver y enviar malware a trav\\u00e9s de sitios web de terceros. Esta vulnerabilidad fue tratada en la versi\\u00f3n 4.2.0.\"}]",
      "id": "CVE-2019-5434",
      "lastModified": "2024-11-21T04:44:55.693",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 7.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-05-06T17:29:00.730",
      "references": "[{\"url\": \"http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html\", \"source\": \"support@hackerone.com\"}, {\"url\": \"https://hackerone.com/reports/512076\", \"source\": \"support@hackerone.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://hackerone.com/reports/542670\", \"source\": \"support@hackerone.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.revive-adserver.com/security/revive-sa-2019-001/\", \"source\": \"support@hackerone.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://hackerone.com/reports/512076\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://hackerone.com/reports/542670\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.revive-adserver.com/security/revive-sa-2019-001/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "support@hackerone.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"support@hackerone.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-502\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-502\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-5434\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2019-05-06T17:29:00.730\",\"lastModified\":\"2024-11-21T04:44:55.693\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the \\\"what\\\" parameter in the \\\"openads.spc\\\" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.\"},{\"lang\":\"es\",\"value\":\"Un atacante podr\u00eda enviar una carga espec\u00edficamente creada al script de invocaci\u00f3n XML-RPC y activar la llamada unserialize() en el par\u00e1metro \\\"what\\\" en el m\u00e9todo RPC \\\"openads.spc\\\". Dicha vulnerabilidad podr\u00eda utilizarse para realizar varios tipos de ataques, por ejemplo, aprovechar las vulnerabilidades de PHP relacionadas con la serializaci\u00f3n o la inyecci\u00f3n de objetos PHP. Es posible, aunque no confirmado, que la vulnerabilidad haya sido usada por algunos atacantes  para conseguir acceso a algunas peticiones Revive Adserver y enviar malware a trav\u00e9s de sitios web de terceros. Esta vulnerabilidad fue tratada en la versi\u00f3n 4.2.0.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"support@hackerone.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-502\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-502\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:revive-sas:revive_adserver:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.2.0\",\"matchCriteriaId\":\"D6812BF4-181A-4D04-97E4-70609E587B42\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html\",\"source\":\"support@hackerone.com\"},{\"url\":\"https://hackerone.com/reports/512076\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/542670\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.revive-adserver.com/security/revive-sa-2019-001/\",\"source\":\"support@hackerone.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://hackerone.com/reports/512076\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/542670\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.revive-adserver.com/security/revive-sa-2019-001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.