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.
4801 vulnerabilities reference this CWE, most recent first.
GHSA-J4QQ-8FGV-RM6J
Vulnerability from github – Published: 2022-12-12 18:30 – Updated: 2023-01-23 15:30The Shortcodes and extra features for Phlox WordPress plugin through 2.10.5 unserializes the content of an imported file, which could lead to PHP object injection when a user imports (intentionally or not) a malicious file and a suitable gadget chain is present on the blog.
{
"affected": [],
"aliases": [
"CVE-2022-3359"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-12T18:15:00Z",
"severity": "HIGH"
},
"details": "The Shortcodes and extra features for Phlox WordPress plugin through 2.10.5 unserializes the content of an imported file, which could lead to PHP object injection when a user imports (intentionally or not) a malicious file and a suitable gadget chain is present on the blog.",
"id": "GHSA-j4qq-8fgv-rm6j",
"modified": "2023-01-23T15:30:33Z",
"published": "2022-12-12T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3359"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/08f3ce22-94a0-496a-aaf9-d35b6b0f5bb6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-J4W6-9WMJ-VFMV
Vulnerability from github – Published: 2024-09-12 15:33 – Updated: 2024-09-12 15:33SolarWinds Access Rights Manager (ARM) was found to be susceptible to a remote code execution vulnerability. If exploited, this vulnerability would allow an authenticated user to abuse the service, resulting in remote code execution.
{
"affected": [],
"aliases": [
"CVE-2024-28991"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-12T14:16:06Z",
"severity": "CRITICAL"
},
"details": "SolarWinds Access Rights Manager (ARM) was found to be susceptible to a remote code execution vulnerability. If exploited, this vulnerability would allow an authenticated user to abuse the service, resulting in remote code execution.",
"id": "GHSA-j4w6-9wmj-vfmv",
"modified": "2024-09-12T15:33:01Z",
"published": "2024-09-12T15:33:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28991"
},
{
"type": "WEB",
"url": "https://documentation.solarwinds.com/en/success_center/arm/content/release_notes/arm_2024-3-1_release_notes.htm"
},
{
"type": "WEB",
"url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2024-28991"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-J52G-696Q-X7C6
Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2024-08-21 09:31The Ultimate Store Kit Elementor Addons, Woocommerce Builder, EDD Builder, Elementor Store Builder, Product Grid, Product Table, Woocommerce Slider plugin is vulnerable to PHP Object Injection via deserialization of untrusted input via the _ultimate_store_kit_compare_products cookie in versions up to , and including, 1.6.4. This makes it possible for an unauthenticated attacker to inject a PHP Object.
No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker or above to delete arbitrary files, retrieve sensitive data, or execute code.
{
"affected": [],
"aliases": [
"CVE-2024-5335"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-21T09:15:04Z",
"severity": "CRITICAL"
},
"details": "The Ultimate Store Kit Elementor Addons, Woocommerce Builder, EDD Builder, Elementor Store Builder, Product Grid, Product Table, Woocommerce Slider plugin is vulnerable to PHP Object Injection via deserialization of untrusted input via the _ultimate_store_kit_compare_products cookie in versions up to , and including, 1.6.4. This makes it possible for an unauthenticated attacker to inject a PHP Object.\n\nNo POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker or above to delete arbitrary files, retrieve sensitive data, or execute code.",
"id": "GHSA-j52g-696q-x7c6",
"modified": "2024-08-21T09:31:32Z",
"published": "2024-08-21T09:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5335"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/ultimate-store-kit/trunk/includes/helper.php#L1103"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3135472/ultimate-store-kit/trunk/includes/helper.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2ae44bcb-6149-4661-8890-23c867e9a918?source=cve"
}
],
"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-J53Q-396G-FX48
Vulnerability from github – Published: 2025-03-03 15:31 – Updated: 2026-04-01 18:33Deserialization of Untrusted Data vulnerability in Brent Jett Assistant allows Object Injection. This issue affects Assistant: from n/a through 1.5.1.
{
"affected": [],
"aliases": [
"CVE-2025-26885"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-03T14:15:56Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Brent Jett Assistant allows Object Injection. This issue affects Assistant: from n/a through 1.5.1.",
"id": "GHSA-j53q-396g-fx48",
"modified": "2026-04-01T18:33:55Z",
"published": "2025-03-03T15:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26885"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/assistant/vulnerability/wordpress-assistant-plugin-1-5-1-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-J563-GRX4-PJPV
Vulnerability from github – Published: 2022-12-29 01:48 – Updated: 2022-12-29 01:48Impact
The vulnerability may allow a remote attacker to terminate the application with a stack overflow error resulting in a denial of service only by manipulating the processed input stream.
Patches
XStream 1.4.20 handles the stack overflow and raises an InputManipulationException instead.
Workarounds
The attack uses the hash code implementation for collections and maps to force recursive hash calculation causing a stack overflow. Following types of the Java runtime are affected:
- java.util.HashMap
- java.util.HashSet
- java.util.Hashtable
- java.util.LinkedHashMap
- java.util.LinkedHashSet
- Other third party collection implementations that use their element's hash code may also be affected
A simple solution is to catch the StackOverflowError in the client code calling XStream.
If your object graph does not use referenced elements at all, you may simply set the NO_REFERENCE mode:
XStream xstream = new XStream();
xstream.setMode(XStream.NO_REFERENCES);
If your object graph contains neither a Hashtable, HashMap nor a HashSet (or one of the linked variants of it) then you can use the security framework to deny the usage of these types:
XStream xstream = new XStream();
xstream.denyTypes(new Class[]{
java.util.HashMap.class, java.util.HashSet.class, java.util.Hashtable.class, java.util.LinkedHashMap.class, java.util.LinkedHashSet.class
});
Unfortunately these types are very common. If you only use HashMap or HashSet and your XML refers these only as default map or set, you may additionally change the default implementation of java.util.Map and java.util.Set at unmarshalling time::
xstream.addDefaultImplementation(java.util.TreeMap.class, java.util.Map.class);
xstream.addDefaultImplementation(java.util.TreeSet.class, java.util.Set.class);
However, this implies that your application does not care about the implementation of the map and all elements are comparable.
References
See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for CVE-2022-41966.
For more information
If you have any questions or comments about this advisory: * Open an issue in XStream * Contact us at XStream Google Group
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.thoughtworks.xstream:xstream"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.20"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-41966"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-121",
"CWE-502",
"CWE-674"
],
"github_reviewed": true,
"github_reviewed_at": "2022-12-29T01:48:08Z",
"nvd_published_at": "2022-12-28T00:15:00Z",
"severity": "HIGH"
},
"details": "### Impact\nThe vulnerability may allow a remote attacker to terminate the application with a stack overflow error resulting in a denial of service only by manipulating the processed input stream.\n\n### Patches\nXStream 1.4.20 handles the stack overflow and raises an InputManipulationException instead.\n\n### Workarounds\nThe attack uses the hash code implementation for collections and maps to force recursive hash calculation causing a stack overflow. Following types of the Java runtime are affected:\n\n- java.util.HashMap\n- java.util.HashSet\n- java.util.Hashtable\n- java.util.LinkedHashMap\n- java.util.LinkedHashSet\n- Other third party collection implementations that use their element\u0027s hash code may also be affected\n\nA simple solution is to catch the StackOverflowError in the client code calling XStream.\n\nIf your object graph does not use referenced elements at all, you may simply set the NO_REFERENCE mode:\n```Java\nXStream xstream = new XStream();\nxstream.setMode(XStream.NO_REFERENCES);\n```\n\nIf your object graph contains neither a Hashtable, HashMap nor a HashSet (or one of the linked variants of it) then you can use the security framework to deny the usage of these types:\n```Java\nXStream xstream = new XStream();\nxstream.denyTypes(new Class[]{\n java.util.HashMap.class, java.util.HashSet.class, java.util.Hashtable.class, java.util.LinkedHashMap.class, java.util.LinkedHashSet.class\n});\n```\n\nUnfortunately these types are very common. If you only use HashMap or HashSet and your XML refers these only as default map or set, you may additionally change the default implementation of java.util.Map and java.util.Set at unmarshalling time::\n```Java\nxstream.addDefaultImplementation(java.util.TreeMap.class, java.util.Map.class);\nxstream.addDefaultImplementation(java.util.TreeSet.class, java.util.Set.class);\n```\nHowever, this implies that your application does not care about the implementation of the map and all elements are comparable.\n\n### References\nSee full information about the nature of the vulnerability and the steps to reproduce it in XStream\u0027s documentation for [CVE-2022-41966](https://x-stream.github.io/CVE-2022-41966.html).\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [XStream](https://github.com/x-stream/xstream/issues)\n* Contact us at [XStream Google Group](https://groups.google.com/group/xstream-user)\n",
"id": "GHSA-j563-grx4-pjpv",
"modified": "2022-12-29T01:48:08Z",
"published": "2022-12-29T01:48:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/x-stream/xstream/security/advisories/GHSA-j563-grx4-pjpv"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41966"
},
{
"type": "PACKAGE",
"url": "https://github.com/x-stream/xstream"
},
{
"type": "WEB",
"url": "https://x-stream.github.io/CVE-2022-41966.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "XStream can cause Denial of Service via stack overflow"
}
GHSA-J5C5-2P8W-CQ4F
Vulnerability from github – Published: 2026-03-19 09:30 – Updated: 2026-04-28 21:36Deserialization of Untrusted Data vulnerability in Membership Software WishList Member X allows Object Injection.This issue affects WishList Member X: from n/a through 3.29.0.
{
"affected": [],
"aliases": [
"CVE-2026-25445"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-19T09:16:17Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Membership Software WishList Member X allows Object Injection.This issue affects WishList Member X: from n/a through 3.29.0.",
"id": "GHSA-j5c5-2p8w-cq4f",
"modified": "2026-04-28T21:36:00Z",
"published": "2026-03-19T09:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25445"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/wishlist-member-x/vulnerability/wordpress-wishlist-member-x-plugin-3-29-0-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-J5FC-RPH7-5XHQ
Vulnerability from github – Published: 2025-04-17 18:31 – Updated: 2026-04-01 18:34Deserialization of Untrusted Data vulnerability in Stylemix uListing allows Object Injection. This issue affects uListing: from n/a through 2.2.0.
{
"affected": [],
"aliases": [
"CVE-2025-32662"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-17T16:15:49Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Stylemix uListing allows Object Injection. This issue affects uListing: from n/a through 2.2.0.",
"id": "GHSA-j5fc-rph7-5xhq",
"modified": "2026-04-01T18:34:51Z",
"published": "2025-04-17T18:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32662"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/ulisting/vulnerability/wordpress-ulisting-plugin-2-1-9-deserialization-of-untrusted-data-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-J5R3-WQ62-8GP5
Vulnerability from github – Published: 2022-05-14 03:22 – Updated: 2025-10-22 00:31In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.
{
"affected": [],
"aliases": [
"CVE-2017-12149"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-04T21:01:00Z",
"severity": "CRITICAL"
},
"details": "In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.",
"id": "GHSA-j5r3-wq62-8gp5",
"modified": "2025-10-22T00:31:29Z",
"published": "2022-05-14T03:22:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12149"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1607"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1608"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1486220"
},
{
"type": "WEB",
"url": "https://github.com/gottburgm/Exploits/tree/master/CVE-2017-12149"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12149"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/100591"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-J65F-MVGW-PRP2
Vulnerability from github – Published: 2022-05-14 03:30 – Updated: 2024-02-26 22:28The BrokerFactory functionality in Apache OpenJPA 1.x before 1.2.3 and 2.x before 2.2.2 creates local executable JSP files containing logging trace data produced during deserialization of certain crafted OpenJPA objects, which makes it easier for remote attackers to execute arbitrary code by creating a serialized object and leveraging improperly secured server programs.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.openjpa:openjpa"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.2.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.openjpa:openjpa"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.2.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2013-1768"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2022-07-08T19:03:11Z",
"nvd_published_at": "2013-07-11T22:55:00Z",
"severity": "HIGH"
},
"details": "The BrokerFactory functionality in Apache OpenJPA 1.x before 1.2.3 and 2.x before 2.2.2 creates local executable JSP files containing logging trace data produced during deserialization of certain crafted OpenJPA objects, which makes it easier for remote attackers to execute arbitrary code by creating a serialized object and leveraging improperly secured server programs.",
"id": "GHSA-j65f-mvgw-prp2",
"modified": "2024-02-26T22:28:10Z",
"published": "2022-05-14T03:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1768"
},
{
"type": "WEB",
"url": "https://github.com/apache/openjpa/commit/7f14c7df6b7c7ef42f0671138b9b5dd062fe99aa"
},
{
"type": "WEB",
"url": "https://github.com/apache/openjpa/commit/87a4452be08b4f97274d0ccfac585ae85841e470"
},
{
"type": "WEB",
"url": "https://github.com/apache/openjpa/commit/b8933dc24b84e7e7430ece56bd645d425dd89f24"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/82268"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/openjpa"
},
{
"type": "WEB",
"url": "https://seclists.org/fulldisclosure/2013/Jun/98"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2013-1862.html"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462076"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462225"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462268"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462318"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462328"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462488"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462512"
},
{
"type": "WEB",
"url": "http://svn.apache.org/viewvc?view=revision\u0026revision=1462558"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Deserialization of Untrusted Data in Apache OpenJPA"
}
GHSA-J66Q-QMRC-89RX
Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2024-09-24 20:58jsonpickle through 1.4.2 allows remote code execution during deserialization of a malicious payload through the decode() function. This CVE is disputed by the project author as intended functionality.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "jsonpickle"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.4.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-22083"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2024-02-01T20:58:40Z",
"nvd_published_at": "2020-12-17T16:15:00Z",
"severity": "CRITICAL"
},
"details": "jsonpickle through 1.4.2 allows remote code execution during deserialization of a malicious payload through the `decode()` function. This CVE is disputed by the project author as intended functionality.",
"id": "GHSA-j66q-qmrc-89rx",
"modified": "2024-09-24T20:58:28Z",
"published": "2022-05-24T17:36:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-22083"
},
{
"type": "WEB",
"url": "https://github.com/jsonpickle/jsonpickle/issues/332"
},
{
"type": "WEB",
"url": "https://github.com/jsonpickle/jsonpickle/issues/332#issuecomment-747807494"
},
{
"type": "WEB",
"url": "https://github.com/jsonpickle/jsonpickle/issues/335"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2020-22083"
},
{
"type": "WEB",
"url": "https://gist.github.com/j0lt-github/bb543e77a1a10c33cb56cf23d0837874"
},
{
"type": "WEB",
"url": "https://github.com/j0lt-github/python-deserialization-attack-payload-generator"
},
{
"type": "PACKAGE",
"url": "https://github.com/jsonpickle/jsonpickle"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/jsonpickle/PYSEC-2020-49.yaml"
},
{
"type": "WEB",
"url": "https://versprite.com/blog/application-security/into-the-jar-jsonpickle-exploitation"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "jsonpickle unsafe deserialization"
}
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.