National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-18343 Detail

Current Description

** DISPUTED ** The debug handler in Symfony before v2.7.33, 2.8.x before v2.8.26, 3.x before v3.2.13, and 3.3.x before v3.3.6 has XSS via an array key during exception pretty printing in ExceptionHandler.php, as demonstrated by a /_debugbar/open?op=get URI. NOTE: the vendor's position is that this is not a vulnerability because the debug tools are not intended for production use. NOTE: the Symfony Debug component is used by Laravel Debugbar.

Source:  MITRE
Description Last Modified:  07/19/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.1 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N (V3 legend)
Impact Score: 2.7
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/barryvdh/laravel-debugbar/issues/850 Exploit Third Party Advisory
https://github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985c Patch Third Party Advisory
https://github.com/symfony/symfony/issues/27987 Exploit Third Party Advisory
https://github.com/symfony/symfony/pull/23684 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Cross-Site Scripting (XSS) (CWE-79)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
Up to (excluding)
2.7.33
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
2.8.0
Up to (excluding)
2.8.26
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
3.0.0
Up to (excluding)
3.2.13
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
3.3.0
Up to (excluding)
3.3.6


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-18343
NVD Published Date:
07/19/2018
NVD Last Modified:
09/18/2018