Undertow up to 1.3.27 WebSocket Server resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Undertow up to 1.3.27. Impacted is an unknown function of the component WebSocket Server. The manipulation results in resource management. This vulnerability is reported as CVE-2017-2670. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Undertow up to 1.3.27. Affected is some unknown functionality of the component WebSocket Server. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.

The bug was discovered 07/26/2018. The weakness was disclosed 07/27/2018 by ryan as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2017-2670 since 11/30/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit 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 176085 (Debian Security Update for undertow (DSA 3906-1)).

Upgrading to version 1.3.28 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105252) and SecurityFocus (BID 98965†). The entries VDB-92173, VDB-92175, VDB-92322 and VDB-95800 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Undertow

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.3.7
• 1.3.8
• 1.3.9
• 1.3.10
• 1.3.11
• 1.3.12
• 1.3.13
• 1.3.14
• 1.3.15
• 1.3.16
• 1.3.17
• 1.3.18
• 1.3.19
• 1.3.20
• 1.3.21
• 1.3.22
• 1.3.23
• 1.3.24
• 1.3.25
• 1.3.26
• 1.3.27

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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

OpenVAS ID: 703906
OpenVAS Name: Debian Security Advisory DSA 3906-1 (undertow - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Undertow 1.3.28

Timelineinfo

11/30/2016 🔍
06/07/2017 +188 days 🔍
12/12/2017 +188 days 🔍
12/14/2017 +1 days 🔍
07/26/2018 +224 days 🔍
07/27/2018 +0 days 🔍
07/27/2018 +0 days 🔍
07/28/2018 +1 days 🔍
04/27/2023 +1734 days 🔍

Sourcesinfo

Advisory: RHSA-2017:3458
Researcher: ryan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2670 (🔍)
GCVE (CVE): GCVE-0-2017-2670
GCVE (VulDB): GCVE-100-122292

OVAL: 🔍

SecurityFocus: 98965 - Red Hat Undertow CVE-2017-2670 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/28/2018 07:43
Updated: 04/27/2023 14:19
Changes: 07/28/2018 07:43 (75), 03/11/2020 07:50 (5), 04/27/2023 14:16 (4), 04/27/2023 14:17 (13), 04/27/2023 14:19 (1)
Complete: 🔍
Cache ID: 216::103

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Discussion

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