Symfony up to 4.2.11/4.3.7 VarExport symfony/var-exporter input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Symfony up to 4.2.11/4.3.7. Affected by this issue is some unknown processing of the file symfony/var-exporter of the component VarExport. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-20. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes strings, allowing some specially crafted ones to escalate to execution of arbitrary PHP code. This is related to symfony/var-exporter.

The weakness was shared 11/21/2019 (GitHub Repository). The advisory is available at github.com. This vulnerability is handled as CVE-2019-11325 since 04/18/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 4.2.12 or 4.3.8 eliminates this vulnerability.

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VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Symfony 4.2.12/4.3.8

Timelineinfoedit

04/18/2019 🔍
11/21/2019 +217 days 🔍
11/22/2019 +1 days 🔍
11/22/2019 +0 days 🔍

Sourcesinfoedit

Advisory: github.com
Status: Not defined

CVE: CVE-2019-11325 (🔍)

Entryinfoedit

Created: 11/22/2019 07:04 AM
Changes: (17) vulnerability_cwe vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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