CVE-2016-4993
Vulnerability Summary
Timeline
Description
CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.
CVSS Metrics
- v3.0•MEDIUM•Score: 6.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS Trends
Current EPSS score: 1.48%• Percentile: 81%
Techniques & Countermeasures
- CWE-93•Improper Neutralization of CRLF Sequences ('CRLF Injection')
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
- CWE-113•Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.
Affected Systems
- org.wildfly•wildfly-undertow
≥ 10.0.0.Final, < 11.0.0.Final
- redhat•jboss_enterprise_application_platform
≤ 7.0.1
- redhat•jboss_wildfly_application_server
10.0.0
References (14)
- http://rhn.redhat.com/errata/RHSA-2016-1841.html
- http://www.securityfocus.com/bid/92894
- https://access.redhat.com/errata/RHSA-2017:3458
- http://www.securitytracker.com/id/1036758
- http://rhn.redhat.com/errata/RHSA-2016-1838.html
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://bugzilla.redhat.com/show_bug.cgi?id=1344321
- https://access.redhat.com/errata/RHSA-2017:3454
- http://rhn.redhat.com/errata/RHSA-2016-1839.html
- http://rhn.redhat.com/errata/RHSA-2016-1840.html
- https://nvd.nist.gov/vuln/detail/CVE-2016-4993
- https://github.com/undertow-io/undertow/commit/834496fb74ddda2af197940c70d08bab419fdf12
- https://issues.redhat.com/browse/UNDERTOW-827