Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

4798 vulnerabilities reference this CWE, most recent first.

CVE-2020-12007 (GCVE-0-2020-12007)

Vulnerability from cvelistv5 – Published: 2020-07-16 21:49 – Updated: 2024-08-04 11:48
VLAI
Summary
A specially crafted communication packet sent to the affected devices could allow remote code execution and a denial-of-service condition due to a deserialization vulnerability. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; Mitsubishi Electric MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; ICONICS GenBroker32 version 9.5 and prior.
Severity
No CVSS data available.
CWE
  • CWE-502 - DESERIALIZATION OF UNTRUSTED DATA CWE-502
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-12000 (GCVE-0-2020-12000)

Vulnerability from cvelistv5 – Published: 2020-06-09 17:54 – Updated: 2024-08-04 11:48
VLAI
Summary
The affected product is vulnerable to the handling of serialized data. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data on the Ignition 8 Gateway (versions prior to 8.0.10) and Ignition 7 Gateway (versions prior to 7.9.14), allowing an attacker to obtain sensitive information.
Severity
No CVSS data available.
CWE
  • CWE-502 - DESERIALIZATION OF UNTRUSTED DATA CWE-502
Assigner
References
Impacted products
Vendor Product Version
n/a Ignition 8 Gateway Affected: versions prior to 7.9.14 and 8.0.10
Show details on NVD website
To clipboard 

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CVE-2020-11995 (GCVE-0-2020-11995)

Vulnerability from cvelistv5 – Published: 2021-01-11 09:40 – Updated: 2025-02-13 16:27
VLAI
Title
Apache Dubbo default deserialization protocol Hessian2 cause CRE
Summary
A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HasMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8.
Severity
No CVSS data available.
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Dubbo Affected: Apache Dubbo , < 2.6.9 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-11067 (GCVE-0-2020-11067)

Vulnerability from cvelistv5 – Published: 2020-05-13 23:25 – Updated: 2024-08-04 11:21
VLAI
Title
Deserialization of Untrusted Data in TYPO3 CMS
Summary
In TYPO3 CMS 9.0.0 through 9.5.16 and 10.0.0 through 10.4.1, it has been discovered that backend user settings (in $BE_USER->uc) are vulnerable to insecure deserialization. In combination with vulnerabilities of third party components, this can lead to remote code execution. A valid backend user account is needed to exploit this vulnerability. This has been fixed in 9.5.17 and 10.4.2.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
TYPO3 TYPO3 CMS Affected: >= 9.0.0, < 9.5.17
Affected: >= 10.0.0, < 10.4.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-10917 (GCVE-0-2020-10917)

Vulnerability from cvelistv5 – Published: 2020-07-22 22:45 – Updated: 2024-08-04 11:14
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NEC ESMPRO Manager 6.42. Authentication is not required to exploit this vulnerability. The specific flaw exists within the RMI service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-10007.
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
Assigner
zdi
References
Impacted products
Vendor Product Version
NEC ESMPRO Manager Affected: 6.42
Create a notification for this product.
Credits
Sivathmican Sivakumaran of Trend Micro Zero Day Initiative
Show details on NVD website
To clipboard 

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CVE-2020-10915 (GCVE-0-2020-10915)

Vulnerability from cvelistv5 – Published: 2020-04-22 20:51 – Updated: 2024-08-04 11:14
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of VEEAM One Agent 9.5.4.4587. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HandshakeResult method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-10401.
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
Assigner
zdi
References
Impacted products
Vendor Product Version
VEEAM One Agent Affected: 9.5.4.4587
Create a notification for this product.
Credits
Michael Zanetta & Edgar Boda-Majer from Bugscale
Show details on NVD website
To clipboard 

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CVE-2020-10914 (GCVE-0-2020-10914)

Vulnerability from cvelistv5 – Published: 2020-04-22 20:51 – Updated: 2024-08-04 11:14
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of VEEAM One Agent 9.5.4.4587. Authentication is not required to exploit this vulnerability. The specific flaw exists within the PerformHandshake method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-10400.
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
Assigner
zdi
References
Impacted products
Vendor Product Version
VEEAM One Agent Affected: 9.5.4.4587
Create a notification for this product.
Credits
Michael Zanetta & Edgar Boda-Majer from Bugscale
Show details on NVD website
To clipboard 

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CVE-2020-10740 (GCVE-0-2020-10740)

Vulnerability from cvelistv5 – Published: 2020-06-22 17:39 – Updated: 2024-08-04 11:14
VLAI
Summary
A vulnerability was found in Wildfly in versions before 20.0.0.Final, where a remote deserialization attack is possible in the Enterprise Application Beans(EJB) due to lack of validation/filtering capabilities in wildfly.
Severity
6.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
[UNKNOWN] wildfly Affected: Versions before 20.0.0.Final
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-10721 (GCVE-0-2020-10721)

Vulnerability from cvelistv5 – Published: 2020-10-22 20:00 – Updated: 2024-08-04 11:14
VLAI
Summary
A flaw was found in the fabric8-maven-plugin 4.0.0 and later. When using a wildfly-swarm or thorntail custom configuration, a malicious YAML configuration file on the local machine executing the maven plug-in could allow for deserialization of untrusted data resulting in arbitrary code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a fabric8-maven-plugin Affected: jkube-1.0.0
Show details on NVD website
To clipboard 

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CVE-2020-10644 (GCVE-0-2020-10644)

Vulnerability from cvelistv5 – Published: 2020-06-09 17:50 – Updated: 2024-08-04 11:06
VLAI
Summary
The affected product lacks proper validation of user-supplied data, which can result in deserialization of untrusted data on the Ignition 8 Gateway (versions prior to 8.0.10) and Ignition 7 Gateway (versions prior to 7.9.14), allowing an attacker to obtain sensitive information.
Severity
No CVSS data available.
CWE
  • CWE-502 - DESERIALIZATION OF UNTRUSTED DATA CWE-502
Assigner
References
Impacted products
Vendor Product Version
n/a Ignition 8 Gateway Affected: versions prior to 7.9.14 and 8.0.10
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design Implementation

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
Implementation

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
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
Architecture and Design Implementation
  • 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
Implementation

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
Architecture and Design Implementation

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
Operation

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.

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