Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2016-6816

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
20/03/2017
Last modified:
20/04/2025

Description

The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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): Low

Base Score 3.x
7.10
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:tomcat:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.4:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.5:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.7:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.8:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.9:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.10:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.11:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.12:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.13:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:6.0.14:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools