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Scientific Linux Security Update : tomcat on SL7.x (noarch) (20170412)
high Nessus Plugin ID 99353
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
Security Fix(es) :- 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.
- A bug was discovered in the error handling of the send file code for the NIO HTTP connector. This led to the current Processor object being added to the Processor cache multiple times allowing information leakage between requests including, and not limited to, session ID and the response body. (CVE-2016-8745)
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 99353
File Name: sl_20170412_tomcat_on_SL7_x.nasl
Version: 3.6
Type: local
Agent: unix
Published: 4/13/2017
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:fermilab:scientific_linux:tomcat, p-cpe:/a:fermilab:scientific_linux:tomcat-admin-webapps, p-cpe:/a:fermilab:scientific_linux:tomcat-docs-webapp, p-cpe:/a:fermilab:scientific_linux:tomcat-el-2.2-api, p-cpe:/a:fermilab:scientific_linux:tomcat-javadoc, p-cpe:/a:fermilab:scientific_linux:tomcat-jsp-2.2-api, p-cpe:/a:fermilab:scientific_linux:tomcat-jsvc, p-cpe:/a:fermilab:scientific_linux:tomcat-lib, p-cpe:/a:fermilab:scientific_linux:tomcat-servlet-3.0-api, p-cpe:/a:fermilab:scientific_linux:tomcat-webapps, x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/12/2017
Vulnerability Publication Date: 3/20/2017
Reference Information
CVE: CVE-2016-6816, CVE-2016-8745