WildFly 10.0.0 Undertow Web Server Header crlf injection

CVSS Meta Temp Score
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5.9$0-$5k0.00

A vulnerability has been found in WildFly 10.0.0 (Application Server Software) and classified as critical. Affected by this vulnerability is an unknown code of the component Undertow Web Server. The manipulation with an unknown input leads to a crlf injection vulnerability (Header). The CWE definition for the vulnerability is CWE-93. 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as usued 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.

The weakness was presented 09/26/2016 by Mikhail with NCC Group (Website). The advisory is shared at rhn.redhat.com. This vulnerability is known as CVE-2016-4993 since 05/24/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 105252 (RHEL 6 / 7 : eap7-jboss-ec2-eap (RHSA-2017:3458)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236580 (Red Hat Update for JBoss Enterprise Application Platform 7.1.0 (RHSA-2017:3455)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105252). See 92175, 92322, 95800 and 105645 for similar entries.

Affected

  • Red Hat JBoss Enterprise Application Platform up to 7.0.1

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.1
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
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CVSSv2info

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Exploitinginfo

Name: Header
Class: Crlf injection / Header
CWE: CWE-93 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 105252
Nessus Name: RHEL 6 / 7 : eap7-jboss-ec2-eap (RHSA-2017:3458)
Nessus File: 🔍
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Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

05/24/2016 🔍
09/06/2016 +105 days 🔍
09/26/2016 +20 days 🔍
09/26/2016 +0 days 🔍
09/27/2016 +1 days 🔍
12/13/2017 +442 days 🔍
12/14/2017 +1 days 🔍
09/21/2022 +1742 days 🔍

Sourcesinfo

Advisory: RHSA-2017:3458
Researcher: Mikhail
Organization: NCC Group
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4993 (🔍)
SecurityTracker: 1036758
SecurityFocus: 92894 - RedHat JBoss Enterprise Application Platform CVE-2016-4993 HTTP Header Injection Vulnerability

See also: 🔍

Entryinfo

Created: 09/27/2016 10:45
Updated: 09/21/2022 12:03
Changes: 09/27/2016 10:45 (63), 04/26/2019 14:52 (15), 09/21/2022 11:55 (4), 09/21/2022 12:03 (1)
Complete: 🔍

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