CVE-2020-5274 : In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception wer

In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception were not properly escaped when the `ErrorHandler` rendered it stacktrace. In addition, the stacktrace were displayed even in a non-debug configuration. The ErrorHandler now escape alls properties of the exception, and the stacktrace is only display in debug configuration. This issue is patched in symfony/http-foundation versions 4.4.5 and 5.0.5

Published 2020-03-30 20:15:20

Updated 2020-04-01 20:34:09

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2020-5274

Sensiolabs » Symfony
Versions from including (>=) 5.0.0 and before (<) 5.0.4
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
Matching versions
Sensiolabs » Symfony
Versions from including (>=) 4.4.0 and before (<) 4.4.4
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-5274

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 22 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-5274

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:N	8.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: None
5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	2.8	2.5	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None
4.6	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N	2.1	2.5	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2020-5274

CWE-209 Generation of Error Message Containing Sensitive Information

The product generates an error message that includes sensitive information about its environment, users, or associated data.
Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)

References for CVE-2020-5274

https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2

Fix Exception message escaping rendered by ErrorHandler · Advisory · symfony/symfony · GitHub
Third Party Advisory
https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad

Added debug argument to decide if debug page should be shown or not · symfony/symfony@cf80224 · GitHub
Patch;Third Party Advisory
https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db

Escape variable in Exception Template · symfony/symfony@629d21b · GitHub
Patch;Third Party Advisory

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Vulnerability Details : CVE-2020-5274

Products affected by CVE-2020-5274

Exploit prediction scoring system (EPSS) score for CVE-2020-5274

CVSS scores for CVE-2020-5274

CWE ids for CVE-2020-5274

References for CVE-2020-5274