7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.9%
Issue Overview:
It was discovered that the code 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, or obtain sensitive
information from requests other then their own. (CVE-2016-6816)
Note: This fix causes Tomcat to respond with an HTTP 400 Bad Request error when
request contains characters that are not permitted by the HTTP specification to
appear not encoded, even though they were previously accepted. The newly
introduced system property tomcat.util.http.parser.HttpParser.requestTargetAllow
can be used to configure Tomcat to accept curly braces ({ and }) and the pipe
symbol (|) in not encoded form, as these are often used in URLs without being
properly encoded.
Affected Packages:
tomcat6
Issue Correction:
Run yum update tomcat6 to update your system.
New Packages:
noarch:
tomcat6-webapps-6.0.51-1.10.amzn1.noarch
tomcat6-6.0.51-1.10.amzn1.noarch
tomcat6-jsp-2.1-api-6.0.51-1.10.amzn1.noarch
tomcat6-servlet-2.5-api-6.0.51-1.10.amzn1.noarch
tomcat6-lib-6.0.51-1.10.amzn1.noarch
tomcat6-el-2.1-api-6.0.51-1.10.amzn1.noarch
tomcat6-docs-webapp-6.0.51-1.10.amzn1.noarch
tomcat6-admin-webapps-6.0.51-1.10.amzn1.noarch
tomcat6-javadoc-6.0.51-1.10.amzn1.noarch
src:
tomcat6-6.0.51-1.10.amzn1.src
Red Hat: CVE-2016-6816, CVE-2016-8745
Mitre: CVE-2016-6816, CVE-2016-8745
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | noarch | tomcat6-webapps | < 6.0.51-1.10.amzn1 | tomcat6-webapps-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6 | < 6.0.51-1.10.amzn1 | tomcat6-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-jsp-2.1-api | < 6.0.51-1.10.amzn1 | tomcat6-jsp-2.1-api-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-servlet-2.5-api | < 6.0.51-1.10.amzn1 | tomcat6-servlet-2.5-api-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-lib | < 6.0.51-1.10.amzn1 | tomcat6-lib-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-el-2.1-api | < 6.0.51-1.10.amzn1 | tomcat6-el-2.1-api-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-docs-webapp | < 6.0.51-1.10.amzn1 | tomcat6-docs-webapp-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-admin-webapps | < 6.0.51-1.10.amzn1 | tomcat6-admin-webapps-6.0.51-1.10.amzn1.noarch.rpm |
Amazon Linux | 1 | noarch | tomcat6-javadoc | < 6.0.51-1.10.amzn1 | tomcat6-javadoc-6.0.51-1.10.amzn1.noarch.rpm |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.9%