Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-m884-279h-32v2
Advisory ID github_osv/GHSA-m884-279h-32v2
Aliases CVE-2020-5274
Summary Exceptions displayed in non-debug configurations in Symfony Description ----------- When `ErrorHandler` renders an exception HTML page, it uses un-escaped properties from the related Exception class to render the stacktrace. The security issue comes from the fact that the stacktraces were also displayed in non-`debug` environments. Resolution ---------- The `ErrorHandler` class now escapes all properties coming from the related Exception, and the stacktrace is not displayed anymore in non-`debug` environments. The patches for this issue are available [here](https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad) and [here](https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db) for branch 4.4. Credits ------- I would like to thank Luka Sikic for reporting & Yonel Ceruto and Jérémy Derussé for fixing the issue.
Status Published
Exploitability 0.5
Weighted Severity 4.1
Risk 2.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-209 Generation of Error Message Containing Sensitive Information
System Score Found at
cvssv3.1 4.6 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/03/GHSA-m884-279h-32v2/GHSA-m884-279h-32v2.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db
https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad
CVE-2020-5274 https://nvd.nist.gov/vuln/detail/CVE-2020-5274
CVE-2020-5274 https://symfony.com/cve-2020-5274
CVE-2020-5274.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/error-handler/CVE-2020-5274.yaml
CVE-2020-5274.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2020-5274.yaml
GHSA-m884-279h-32v2 https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/03/GHSA-m884-279h-32v2/GHSA-m884-279h-32v2.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.