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githubGitHub Advisory DatabaseGHSA-R2RQ-3H56-FQM4
HistoryMay 14, 2022 - 1:14 a.m.

Symfony DoS

2022-05-1401:14:36
CWE-613
GitHub Advisory Database
github.com
11
symfony 2.7.x
symfony 2.8.x
symfony 3.3.x
symfony 3.4.x
symfony 4.0.x
httpfoundation
pdosessionhandler
denial of service

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.006

Percentile

77.7%

An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.

Affected configurations

Vulners
Node
symfonyhttp_foundationRange<4.0.11
OR
symfonyhttp_foundationRange<3.4.11
OR
symfonyhttp_foundationRange<3.3.17
OR
symfonyhttp_foundationRange<2.8.41
OR
symfonyhttp_foundationRange<2.7.48
OR
symfonysymfonyRange<4.0.11
OR
symfonysymfonyRange<3.4.11
OR
symfonysymfonyRange<3.3.17
OR
symfonysymfonyRange<2.8.41
OR
symfonysymfonyRange<2.7.48

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.006

Percentile

77.7%