Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2019-11830

Deserialization of Untrusted Data

Published: May 09, 2019 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-11830
CWEhttps://cwe.mitre.org/data/definitions/502.html

PharMetaDataInterceptor in the PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 mishandles Phar stub parsing, which allows attackers to bypass a deserialization protection mechanism.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
PharstreamwrapperTypo32.0.0 (including)2.1.1 (excluding)
PharstreamwrapperTypo33.0.0 (including)3.1.1 (excluding)

Potential Mitigations

  • 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.

References

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