Arbitrary Code Execution

Affecting symfony/var-exporter package, versions >=4.2.0, <4.2.12 || >=4.3.0, <4.3.8

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Overview

symfony/var-exporter is a blend of var_export() + serialize() to turn any serializable data structure to plain PHP code.

Affected versions of this package are vulnerable to Arbitrary Code Execution. Some strings were not properly escaped when being dumped by the VarExporter component leading to remote code execution.

Remediation

Upgrade symfony/var-exporter to version 4.2.12, 4.3.8 or higher.

References

CVSS Score

7.3
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    Low
  • Integrity
    Low
  • Availability
    Low
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Credit
Seung Woo Yuk (xtac)
CVE
CVE-2019-11325
CWE
CWE-94
Snyk ID
SNYK-PHP-SYMFONYVAREXPORTER-535381
Disclosed
13 Nov, 2019
Published
22 Nov, 2019