CVE-2019-19849: Typo3/cms core TYPO3 Insecure Deserialization Vulnerability
HIGHCVE-2019-19849 is a HIGH (CVSS 8.8) typo3 insecure deserialization vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves typo3 insecure deserialization in query generator & query view. Remediation is available by upgrading affected packages to version 10.2.1, 8.7.30, 9.5.12.
CVE-2019-19849 at a Glance
Security Impact
CVSS: 8.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2019-19849
To remediate this vulnerability, upgrade all affected Typo3/cms core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade typo3/cms-core to 10.2.1Upgrade typo3/cms-core to 8.7.30Upgrade typo3/cms-core to 9.5.12Upgrade typo3/cms to 10.2.1Upgrade typo3/cms to 8.7.30Upgrade typo3/cms to 9.5.12Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for typo3/cms-coreHow to Check if You Are Affected
To determine whether your application is affected by CVE-2019-19849, inspect your project dependencies for Typo3/cms core:
inspect dependencies for typo3/cms-coreAnalyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.2.1), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Typo3/cms core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2019-19849 Affected Typo3/cms core Versions
6 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
typo3/cms-core
|
Packagist |
≥ 10.0.0
< 10.2.1
|
10.2.1
|
|
typo3/cms-core
|
Packagist |
≥ 8.0.0
< 8.7.30
|
8.7.30
|
|
typo3/cms-core
|
Packagist |
≥ 9.0.0
< 9.5.12
|
9.5.12
|
|
typo3/cms
|
Packagist |
≥ 10.0.0
< 10.2.1
|
10.2.1
|
|
typo3/cms
|
Packagist |
≥ 8.0.0
< 8.7.30
|
8.7.30
|
|
typo3/cms
|
Packagist |
≥ 9.0.0
< 9.5.12
|
9.5.12
|
References
Frequently Asked Questions
What is CVE-2019-19849?
Which Typo3/cms core versions are affected?
What version fixes CVE-2019-19849?
Is typo3/cms-core affected?
Is typo3/cms affected?
What is the CVSS score of CVE-2019-19849?
What CWE is associated with CVE-2019-19849?
How can I check Packagist dependencies for CVE-2019-19849?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-rcgc-4xfc-564v",
"modified" : "2024-04-25T21:35:08Z",
"published" : "2022-05-24T17:03:52Z",
"aliases" : [ "CVE-2019-19849" ],
"summary" : "TYPO3 Insecure Deserialization in Query Generator & Query View",
"details" : "An issue was discovered in TYPO3 before 8.7.30, 9.x before 9.5.12, and 10.x before 10.2.2. It has been discovered that the classes QueryGenerator and QueryView are vulnerable to insecure deserialization. One exploitable scenario requires having the system extension ext:lowlevel (Backend Module: DB Check) installed, with a valid backend user who has administrator privileges. The other exploitable scenario requires having the system extension ext:sys_action installed, with a valid backend user who has limited privileges.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "10.0.0"
}, {
"fixed" : "10.2.1"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.0.0"
}, {
"fixed" : "8.7.30"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.5.12"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "10.0.0"
}, {
"fixed" : "10.2.1"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.0.0"
}, {
"fixed" : "8.7.30"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.5.12"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-19849"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-19849.yaml"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-19849.yaml"
}, {
"type" : "WEB",
"url" : "https://review.typo3.org/q/%2522Resolves:+%252389005%2522+topic:security"
}, {
"type" : "WEB",
"url" : "https://typo3.org/security/advisory/typo3-core-sa-2019-026"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-502" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2024-04-25T21:35:08Z",
"nvd_published_at" : "2019-12-17T17:15:00Z"
}
}