National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-14773 Detail

Current Description

An issue was discovered in Http Foundation in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.13, 4.0.0 through 4.0.13, and 4.1.0 through 4.1.2. It arises from support for a (legacy) IIS header that lets users override the path in the request URL via the X-Original-URL or X-Rewrite-URL HTTP request header. These headers are designed for IIS support, but it's not verified that the server is in fact running IIS, which means anybody who can send these requests to an application can trigger this. This affects \Symfony\Component\HttpFoundation\Request::prepareRequestUri() where X-Original-URL and X_REWRITE_URL are both used. The fix drops support for these methods so that they cannot be used as attack vectors such as web cache poisoning.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/104943 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041405 Third Party Advisory VDB Entry
https://github.com/symfony/symfony/commit/e447e8b92148ddb3d1956b96638600ec95e08f6b Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/May/21
https://symfony.com/blog/cve-2018-14773-remove-support-for-legacy-and-risky-http-headers Patch Vendor Advisory
https://www.debian.org/security/2019/dsa-4441
https://www.drupal.org/SA-CORE-2018-005 Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Data Processing Errors (CWE-19)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (excluding)
2.7.0
Up to (including)
2.7.48
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
2.8.0
Up to (including)
2.8.43
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
3.3.0
Up to (including)
3.3.17
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
3.4.0
Up to (including)
3.4.13
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
4.0.0
Up to (including)
4.0.13
 cpe:/a:sensiolabs:symfony
     Show Matching CPE(s)
From (including)
4.1.0
Up to (including)
4.1.2

Configuration 2 ( hide )
 cpe:/o:debian:debian_linux:8.0
     Show Matching CPE(s)


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-14773
NVD Published Date:
08/03/2018
NVD Last Modified:
05/10/2019