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.
4800 vulnerabilities reference this CWE, most recent first.
GHSA-VP84-P7V4-WJ2G
Vulnerability from github – Published: 2026-01-22 18:30 – Updated: 2026-01-28 18:30Deserialization of Untrusted Data vulnerability in Arraytics Eventin wp-event-solution allows Object Injection.This issue affects Eventin: from n/a through <= 4.1.1.
{
"affected": [],
"aliases": [
"CVE-2025-68047"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-22T17:16:09Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Arraytics Eventin wp-event-solution allows Object Injection.This issue affects Eventin: from n/a through \u003c= 4.1.1.",
"id": "GHSA-vp84-p7v4-wj2g",
"modified": "2026-01-28T18:30:42Z",
"published": "2026-01-22T18:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68047"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/wp-event-solution/vulnerability/wordpress-eventin-plugin-4-0-52-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-VP8M-MF3R-82Q9
Vulnerability from github – Published: 2026-07-04 03:31 – Updated: 2026-07-04 03:31picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.
{
"affected": [],
"aliases": [
"CVE-2025-71359"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-04T02:16:22Z",
"severity": "HIGH"
},
"details": "picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.",
"id": "GHSA-vp8m-mf3r-82q9",
"modified": "2026-07-04T03:31:01Z",
"published": "2026-07-04T03:31:01Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71359"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-lib2to3-pgen2-grammar-grammar-loads"
}
],
"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:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-VP98-W2P3-MV35
Vulnerability from github – Published: 2023-03-10 15:30 – Updated: 2025-09-02 22:25** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.4"
},
{
"fixed": "2.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.4"
},
{
"fixed": "2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-26464"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-10T23:48:32Z",
"nvd_published_at": "2023-03-10T14:15:00Z",
"severity": "HIGH"
},
"details": "** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.",
"id": "GHSA-vp98-w2p3-mv35",
"modified": "2025-09-02T22:25:25Z",
"published": "2023-03-10T15:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26464"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/logging-log4j2"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/wkx6grrcjkh86crr49p4blc1v1nflj3t"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230505-0008"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Apache Log4j 1.x (EOL) allows Denial of Service (DoS)"
}
GHSA-VPC6-QR46-3MW7
Vulnerability from github – Published: 2024-09-28 03:30 – Updated: 2024-10-01 15:32The GiveWP – Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.16.1 via deserialization of untrusted input via several parameters like 'give_title' and 'card_address'. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to delete arbitrary files and achieve remote code execution. This is essentially the same vulnerability as CVE-2024-5932, however, it was discovered the the presence of stripslashes_deep on user_info allows the is_serialized check to be bypassed. This issue was mostly patched in 3.16.1, but further hardening was added in 3.16.2.
{
"affected": [],
"aliases": [
"CVE-2024-8353"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-28T02:15:09Z",
"severity": "CRITICAL"
},
"details": "The GiveWP \u2013 Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.16.1 via deserialization of untrusted input via several parameters like \u0027give_title\u0027 and \u0027card_address\u0027. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to delete arbitrary files and achieve remote code execution. This is essentially the same vulnerability as CVE-2024-5932, however, it was discovered the the presence of stripslashes_deep on user_info allows the is_serialized check to be bypassed. This issue was mostly patched in 3.16.1, but further hardening was added in 3.16.2.",
"id": "GHSA-vpc6-qr46-3mw7",
"modified": "2024-10-01T15:32:04Z",
"published": "2024-09-28T03:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8353"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/give/tags/3.16.0/includes/process-donation.php#L154"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3149290/give/tags/3.16.1/includes/admin/admin-actions.php"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3149290/give/tags/3.16.1/includes/process-donation.php"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3149290/give/tags/3.16.1/src/Helpers/Utils.php"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3157829/give/tags/3.16.2/includes/process-donation.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c4c530fa-eaf4-4721-bfb6-9fc06d7f343c?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VPR3-2659-RW55
Vulnerability from github – Published: 2026-04-27 09:34 – Updated: 2026-05-05 21:19The camel-mina component's MinaConverter.toObjectInput(IoBuffer) type converter wraps an IoBuffer in a java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. When a Camel route uses camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker sending a crafted serialized Java object over the network to the MINA consumer port can trigger arbitrary code execution in the context of the application during readObject().
This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0.
Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.camel:camel-mina"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "4.14.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.camel:camel-mina"
},
"ranges": [
{
"events": [
{
"introduced": "4.15.0"
},
{
"fixed": "4.18.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.camel:camel-mina"
},
"ranges": [
{
"events": [
{
"introduced": "4.19.0"
},
{
"fixed": "4.20.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-40473"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-05T21:19:01Z",
"nvd_published_at": "2026-04-27T09:16:01Z",
"severity": "HIGH"
},
"details": "The camel-mina component\u0027s MinaConverter.toObjectInput(IoBuffer) type converter wraps an IoBuffer in a java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. When a Camel route uses camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker sending a crafted serialized Java object over the network to the MINA consumer port can trigger arbitrary code execution in the context of the application during readObject().\n\nThis issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0.\n\nUsers are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.",
"id": "GHSA-vpr3-2659-rw55",
"modified": "2026-05-05T21:19:01Z",
"published": "2026-04-27T09:34:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40473"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/pull/22583"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/pull/22584"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/pull/22585"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/commit/8e7f6335d2b4b096df26f8221723405ceaee275a"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/commit/b605816d11c253d22989abc290c198be83e3f817"
},
{
"type": "WEB",
"url": "https://github.com/apache/camel/commit/c35b0a3720f8c80025b06112d5d9c2932426d7f0"
},
{
"type": "WEB",
"url": "https://camel.apache.org/security/CVE-2026-40473.html"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/camel"
},
{
"type": "WEB",
"url": "https://issues.apache.org/jira/browse/CAMEL-23319"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/04/26/8"
}
],
"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"
}
],
"summary": "Camel-MINA Vulnerable to Deserialization of Untrusted Data"
}
GHSA-VQ3G-VJX5-H9P5
Vulnerability from github – Published: 2024-11-24 21:30 – Updated: 2024-11-24 21:30An issue was discovered in the server in Veritas Enterprise Vault before 15.2, ZDI-CAN-24334. It allows remote attackers to execute arbitrary code because untrusted data, received on a .NET Remoting TCP port, is deserialized.
{
"affected": [],
"aliases": [
"CVE-2024-53909"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-24T21:15:03Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in the server in Veritas Enterprise Vault before 15.2, ZDI-CAN-24334. It allows remote attackers to execute arbitrary code because untrusted data, received on a .NET Remoting TCP port, is deserialized.",
"id": "GHSA-vq3g-vjx5-h9p5",
"modified": "2024-11-24T21:30:46Z",
"published": "2024-11-24T21:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53909"
},
{
"type": "WEB",
"url": "https://www.veritas.com/content/support/en_US/security/VTS24-014"
}
],
"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-VQ5R-GHV4-W862
Vulnerability from github – Published: 2022-12-07 18:30 – Updated: 2022-12-09 15:30hope-boot 1.0.0 has a deserialization vulnerability that can cause Remote Code Execution (RCE).
{
"affected": [],
"aliases": [
"CVE-2022-44371"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-07T17:15:00Z",
"severity": "CRITICAL"
},
"details": "hope-boot 1.0.0 has a deserialization vulnerability that can cause Remote Code Execution (RCE).",
"id": "GHSA-vq5r-ghv4-w862",
"modified": "2022-12-09T15:30:29Z",
"published": "2022-12-07T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44371"
},
{
"type": "WEB",
"url": "https://github.com/java-aodeng/hope-boot/issues/83"
}
],
"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-VQ83-4R5V-J6XX
Vulnerability from github – Published: 2025-11-25 21:32 – Updated: 2025-11-26 15:34An issue was discovered in jishenghua JSH_ERP 2.3.1. The /materialCategory/addMaterialCategory endpoint is vulnerable to fastjson deserialization attacks.
{
"affected": [],
"aliases": [
"CVE-2025-51743"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-25T21:15:55Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in jishenghua JSH_ERP 2.3.1. The /materialCategory/addMaterialCategory endpoint is vulnerable to fastjson deserialization attacks.",
"id": "GHSA-vq83-4r5v-j6xx",
"modified": "2025-11-26T15:34:11Z",
"published": "2025-11-25T21:32:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-51743"
},
{
"type": "WEB",
"url": "https://blog.hackpax.top/jsh-erp2"
},
{
"type": "WEB",
"url": "https://gist.github.com/Paxsizy/cd1557aeba8093a8650601c4dbffb6f9"
},
{
"type": "WEB",
"url": "https://gitee.com/jishenghua"
},
{
"type": "WEB",
"url": "https://gitee.com/jishenghua/JSH_ERP"
}
],
"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-VQJH-XQJG-G4P7
Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-26 18:31Deserialization of Untrusted Data vulnerability in NooTheme CitiLights noo-citilights allows Object Injection.This issue affects CitiLights: from n/a through <= 3.7.1.
{
"affected": [],
"aliases": [
"CVE-2026-24974"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T17:16:39Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in NooTheme CitiLights noo-citilights allows Object Injection.This issue affects CitiLights: from n/a through \u003c= 3.7.1.",
"id": "GHSA-vqjh-xqjg-g4p7",
"modified": "2026-03-26T18:31:33Z",
"published": "2026-03-25T18:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24974"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/noo-citilights/vulnerability/wordpress-citilights-theme-3-7-1-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-VQMV-47XG-9WPR
Vulnerability from github – Published: 2025-12-29 15:24 – Updated: 2025-12-29 15:24Summary
Using pty.spawn, which is a built-in python library function to execute arbitrary commands on the host system.
Details
The attack payload executes in the following steps:
First, the attacker craft the payload by calling to pty.spawn function in the __reduce__ method. Then the victim attempts to use picklescan to scan the pickle file for issues and sees this -
----------- SCAN SUMMARY -----------
Scanned files: 1
Infected files: 0
Dangerous globals: 0
The victim proceeds to load the pickle file and execute attacker-injected arbitrary code.
PoC
class PtyExploit:
def __reduce__(self):
return (pty.spawn, (["/bin/sh", "-c", "id; exit"],))
Impact
Who is impacted? Any organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models. What is the impact? Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded. Supply Chain Attack: Attackers can distribute infected pickle files across ML models, APIs, or saved Python objects.
Collaborators
https://github.com/ajohnston9 https://github.com/geo-lit
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "picklescan"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.33"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2025-12-29T15:24:33Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\nUsing pty.spawn, which is a built-in python library function to execute arbitrary commands on the host system.\n\n### Details\nThe attack payload executes in the following steps:\nFirst, the attacker craft the payload by calling to `pty.spawn` function in the `__reduce__` method. Then the victim attempts to use picklescan to scan the pickle file for issues and sees this -\n```\n----------- SCAN SUMMARY -----------\nScanned files: 1\nInfected files: 0\nDangerous globals: 0\n```\nThe victim proceeds to load the pickle file and execute attacker-injected arbitrary code.\n\n### PoC\n```\nclass PtyExploit:\n def __reduce__(self):\n return (pty.spawn, ([\"/bin/sh\", \"-c\", \"id; exit\"],))\n```\n\n### Impact\n**Who is impacted?** Any organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models.\n**What is the impact?** Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded.\n**Supply Chain Attack**: Attackers can distribute infected pickle files across ML models, APIs, or saved Python objects.\n\n### Collaborators\nhttps://github.com/ajohnston9\nhttps://github.com/geo-lit",
"id": "GHSA-vqmv-47xg-9wpr",
"modified": "2025-12-29T15:24:33Z",
"published": "2025-12-29T15:24:33Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-vqmv-47xg-9wpr"
},
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/pull/53"
},
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/commit/70c1c6c31beb6baaf52c8db1b6c3c0e84a6f9dab"
},
{
"type": "PACKAGE",
"url": "https://github.com/mmaitre314/picklescan"
},
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/releases/tag/v0.0.33"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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/E:P",
"type": "CVSS_V4"
}
],
"summary": "Picklescan missing detection when calling pty.spawn"
}
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.