Vulnerability CVE-2019-9942
Published: 2019-03-23

Description:
A sandbox information disclosure exists in Twig before 1.38.0 and 2.x before 2.7.0 because, under some circumstances, it is possible to call the __toString() method on an object even if not allowed by the security policy in place.

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Symfony -> TWIG 

 References:
https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
https://seclists.org/bugtraq/2019/Mar/60
https://symfony.com/blog/twig-sandbox-information-disclosure
https://www.debian.org/security/2019/dsa-4419
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