CWE-502
AllowedDeserialization of Untrusted Data
Abstraction: Base · Status: Draft
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
4815 vulnerabilities reference this CWE, most recent first.
GHSA-P39X-3WQR-GGFF
Vulnerability from github – Published: 2025-05-23 15:31 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in Codexpert, Inc WC Affiliate allows Object Injection. This issue affects WC Affiliate: from n/a through 2.9.1.
{
"affected": [],
"aliases": [
"CVE-2025-47660"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-23T13:15:42Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Codexpert, Inc WC Affiliate allows Object Injection. This issue affects WC Affiliate: from n/a through 2.9.1.",
"id": "GHSA-p39x-3wqr-ggff",
"modified": "2026-04-01T18:35:16Z",
"published": "2025-05-23T15:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47660"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/wc-affiliate/vulnerability/wordpress-wc-affiliate-2-8-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P3C9-7HQH-56MX
Vulnerability from github – Published: 2023-01-16 15:30 – Updated: 2023-01-24 18:30A vulnerability, which was classified as critical, has been found in abhilash1985 PredictApp. This issue affects some unknown processing of the file config/initializers/new_framework_defaults_7_0.rb of the component Cookie Handler. The manipulation leads to deserialization. The attack may be initiated remotely. The name of the patch is b067372f3ee26fe1b657121f0f41883ff4461a06. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-218387.
{
"affected": [],
"aliases": [
"CVE-2022-4890"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-16T13:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability, which was classified as critical, has been found in abhilash1985 PredictApp. This issue affects some unknown processing of the file config/initializers/new_framework_defaults_7_0.rb of the component Cookie Handler. The manipulation leads to deserialization. The attack may be initiated remotely. The name of the patch is b067372f3ee26fe1b657121f0f41883ff4461a06. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-218387.",
"id": "GHSA-p3c9-7hqh-56mx",
"modified": "2023-01-24T18:30:32Z",
"published": "2023-01-16T15:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4890"
},
{
"type": "WEB",
"url": "https://github.com/abhilash1985/PredictApp/pull/73"
},
{
"type": "WEB",
"url": "https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.218387"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.218387"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P3G4-9XFV-WQ9V
Vulnerability from github – Published: 2022-05-14 03:40 – Updated: 2024-01-30 23:18Jenkins Pipeline: Supporting APIs Plugin 2.17 and earlier have an arbitrary code execution due to incomplete sandbox protection: Methods related to Java deserialization like readResolve implemented in Pipeline scripts were not subject to sandbox protection, and could therefore execute arbitrary code. This could be exploited e.g. by regular Jenkins users with the permission to configure Pipelines in Jenkins, or by trusted committers to repositories containing Jenkinsfiles.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.17"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins.workflow:workflow-support"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.18"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-1000058"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2024-01-30T23:18:21Z",
"nvd_published_at": "2018-02-09T23:29:00Z",
"severity": "HIGH"
},
"details": "Jenkins Pipeline: Supporting APIs Plugin 2.17 and earlier have an arbitrary code execution due to incomplete sandbox protection: Methods related to Java deserialization like readResolve implemented in Pipeline scripts were not subject to sandbox protection, and could therefore execute arbitrary code. This could be exploited e.g. by regular Jenkins users with the permission to configure Pipelines in Jenkins, or by trusted committers to repositories containing Jenkinsfiles.",
"id": "GHSA-p3g4-9xfv-wq9v",
"modified": "2024-01-30T23:18:21Z",
"published": "2022-05-14T03:40:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000058"
},
{
"type": "WEB",
"url": "https://jenkins.io/security/advisory/2018-02-05"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103034"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Arbitrary code execution due to incomplete sandbox protection in Pipeline: Supporting APIs Plugin"
}
GHSA-P3J4-F85X-CW86
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2024-04-04 00:46Ampache 3.8.3 allows PHP Object Instantiation via democratic.ajax.php and democratic.class.php.
{
"affected": [],
"aliases": [
"CVE-2017-18375"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-24T18:29:00Z",
"severity": "HIGH"
},
"details": "Ampache 3.8.3 allows PHP Object Instantiation via democratic.ajax.php and democratic.class.php.",
"id": "GHSA-p3j4-f85x-cw86",
"modified": "2024-04-04T00:46:38Z",
"published": "2022-05-24T16:46:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18375"
},
{
"type": "WEB",
"url": "https://fenceposterror.github.io/2017/06/16/Hacking-For-Fun-And-Non-Profit.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P3WM-HF9C-VV27
Vulnerability from github – Published: 2025-01-07 06:32 – Updated: 2026-04-08 18:33The Compare Products for WooCommerce plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.2.1 via deserialization of untrusted input from the 'woo_compare_list' cookie. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
{
"affected": [],
"aliases": [
"CVE-2024-12313"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-07T05:15:17Z",
"severity": "HIGH"
},
"details": "The Compare Products for WooCommerce plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.2.1 via deserialization of untrusted input from the \u0027woo_compare_list\u0027 cookie. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
"id": "GHSA-p3wm-hf9c-vv27",
"modified": "2026-04-08T18:33:47Z",
"published": "2025-01-07T06:32:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12313"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/woocommerce-compare-products/trunk/classes/class-wc-compare-functions.php#L219"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/woocommerce-compare-products/trunk/classes/class-wc-compare-functions.php#L237"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/woocommerce-compare-products/trunk/classes/class-wc-compare-functions.php#L256"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/woocommerce-compare-products/trunk/classes/class-wc-compare-functions.php#L275"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3215166"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/638e8e67-38b3-4fc4-bd77-8f268030a93a?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P439-6462-PR5V
Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2026-01-20 15:31Deserialization of Untrusted Data vulnerability in wpinstinct WooCommerce Vehicle Parts Finder woo-vehicle-parts-finder allows Object Injection.This issue affects WooCommerce Vehicle Parts Finder: from n/a through <= 3.7.
{
"affected": [],
"aliases": [
"CVE-2025-49380"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T15:15:35Z",
"severity": "MODERATE"
},
"details": "Deserialization of Untrusted Data vulnerability in wpinstinct WooCommerce Vehicle Parts Finder woo-vehicle-parts-finder allows Object Injection.This issue affects WooCommerce Vehicle Parts Finder: from n/a through \u003c= 3.7.",
"id": "GHSA-p439-6462-pr5v",
"modified": "2026-01-20T15:31:22Z",
"published": "2025-10-22T15:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49380"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/woo-vehicle-parts-finder/vulnerability/wordpress-woocommerce-vehicle-parts-finder-plugin-3-7-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/woo-vehicle-parts-finder/vulnerability/wordpress-woocommerce-vehicle-parts-finder-plugin-3-7-php-object-injection-vulnerability"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/woo-vehicle-parts-finder/vulnerability/wordpress-woocommerce-vehicle-parts-finder-plugin-3-7-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-P43X-XFJF-5JHR
Vulnerability from github – Published: 2020-05-15 18:59 – Updated: 2024-03-15 00:20FasterXML jackson-databind 2.x before 2.9.10.4, 2.8.11.6, and 2.7.9.7 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.fasterxml.jackson.core:jackson-databind"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "com.fasterxml.jackson.core:jackson-databind"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.11.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "com.fasterxml.jackson.core:jackson-databind"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.7.9.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-9548"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2020-04-23T19:24:13Z",
"nvd_published_at": "2020-03-02T04:15:00Z",
"severity": "CRITICAL"
},
"details": "FasterXML jackson-databind 2.x before 2.9.10.4, 2.8.11.6, and 2.7.9.7 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).",
"id": "GHSA-p43x-xfjf-5jhr",
"modified": "2024-03-15T00:20:08Z",
"published": "2020-05-15T18:59:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9548"
},
{
"type": "WEB",
"url": "https://github.com/FasterXML/jackson-databind/issues/2634"
},
{
"type": "WEB",
"url": "https://github.com/FasterXML/jackson-databind/commit/1e64db6a2fad331f96c7363fda3bc5f3dffa25bb"
},
{
"type": "WEB",
"url": "https://github.com/FasterXML/jackson-databind/commit/9f4e97019fb0dd836533d0b6198c88787e235ae2"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2021.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200904-0006"
},
{
"type": "WEB",
"url": "https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/03/msg00008.html"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2@%3Cissues.geode.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rdd4df698d5d8e635144d2994922bf0842e933809eae259521f3b5097@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rdd49ab9565bec436a896bc00c4b9fc9dce1598e106c318524fbdfec6@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rd5a4457be4623038c3989294429bc063eec433a2e55995d81591e2ca@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rb6fecb5e96a6d61e175ff49f33f2713798dd05cf03067c169d195596@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r98c9b6e4c9e17792e2cd1ec3e4aa20b61a791939046d3f10888176bb@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r9464a40d25c3ba1a55622db72f113eb494a889656962d098c70c5bb1@%3Cdev.zookeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r35d30db00440ef63b791c4b7f7acb036e14d4a23afa2a249cb66c0fd@%3Cissues.zookeeper.apache.org%3E"
},
{
"type": "PACKAGE",
"url": "https://github.com/FasterXML/jackson-databind"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "jackson-databind mishandles the interaction between serialization gadgets and typing"
}
GHSA-P47F-322F-WHFH
Vulnerability from github – Published: 2026-05-28 15:39 – Updated: 2026-07-02 13:55Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection albeit heavily restricted.
More precisely, an attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from classes in the java.lang and java.util packages that are not explicitly blocked.
Although deserialization is heavily restricted by HardenedObjectInputStream and no practical way to achieve remote code execution or significant privilege escalation has been identified, this issue constitutes a bypass of the intended security restrictions.
This issue affects logback: through 1.5.32 inclusive.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.5.32"
},
"package": {
"ecosystem": "Maven",
"name": "ch.qos.logback:logback-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.33"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-9828"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-02T13:55:30Z",
"nvd_published_at": "2026-05-28T14:16:27Z",
"severity": "LOW"
},
"details": "Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection albeit heavily restricted.\n\nMore precisely, an attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from classes in the java.lang and java.util packages that are not explicitly blocked.\n\nAlthough deserialization is heavily restricted by HardenedObjectInputStream and no practical way to achieve remote code execution or significant privilege escalation has been identified, this issue constitutes a bypass of the intended security restrictions.\n\nThis issue affects logback: through 1.5.32 inclusive.",
"id": "GHSA-p47f-322f-whfh",
"modified": "2026-07-02T13:55:30Z",
"published": "2026-05-28T15:39:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9828"
},
{
"type": "PACKAGE",
"url": "https://github.com/qos-ch/logback"
},
{
"type": "WEB",
"url": "https://logback.qos.ch/news.html#1.5.33"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/RE:L/U:Green",
"type": "CVSS_V4"
}
],
"summary": "QOS.CH Sarl logback logback-core has a deserialization of untrusted data vulnerability"
}
GHSA-P4C2-74W6-PRRQ
Vulnerability from github – Published: 2023-12-01 00:31 – Updated: 2023-12-01 00:31In Delta Electronics InfraSuite Device Master v.1.0.7, a vulnerability exists that allows an unauthenticated attacker to execute code with local administrator privileges.
{
"affected": [],
"aliases": [
"CVE-2023-47207"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-30T22:15:08Z",
"severity": "CRITICAL"
},
"details": "In Delta Electronics InfraSuite Device Master v.1.0.7, a vulnerability exists that allows an unauthenticated attacker to execute code with local administrator privileges.",
"id": "GHSA-p4c2-74w6-prrq",
"modified": "2023-12-01T00:31:00Z",
"published": "2023-12-01T00:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-47207"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-331-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P4MQ-MQPJ-7XCJ
Vulnerability from github – Published: 2023-03-23 21:30 – Updated: 2025-10-22 00:32Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.
{
"affected": [],
"aliases": [
"CVE-2023-26359"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-23T20:15:00Z",
"severity": "CRITICAL"
},
"details": "Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.",
"id": "GHSA-p4mq-mqpj-7xcj",
"modified": "2025-10-22T00:32:43Z",
"published": "2023-03-23T21:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26359"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/coldfusion/apsb23-25.html"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-26359"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
Mitigation
When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
Mitigation
Explicitly define a final object() to prevent deserialization.
Mitigation
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
Mitigation
Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
Mitigation MIT-29
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-586: Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.