Apache Traffic Server up to 5.2.x/5.3.2/6.2.0/7.0.0 TLS Handshake Core Dump input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apache Traffic Server up to 5.2.x/5.3.2/6.2.0/7.0.0. Affected by this vulnerability is an unknown functionality of the component TLS Handshake. This manipulation causes input validation (Core Dump). This vulnerability is registered as CVE-2017-7671. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apache Traffic Server up to 5.2.x/5.3.2/6.2.0/7.0.0. Affected by this vulnerability is an unknown functionality of the component TLS Handshake. The manipulation with an unknown input leads to a input validation vulnerability (Core Dump). The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

There is a DOS attack vulnerability in Apache Traffic Server (ATS) 5.2.0 to 5.3.2, 6.0.0 to 6.2.0, and 7.0.0 with the TLS handshake. This issue can cause the server to coredump.

The bug was discovered 02/27/2018. The weakness was published 02/27/2018 (Website). The advisory is shared at lists.apache.org. This vulnerability is known as CVE-2017-7671 since 04/11/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 107228 (Apache Traffic Server 5.2.0 - 5.3.2 / 6.x < 6.2.2 / 7.x < 7.1.2 TLS Handshake DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176310 (Debian Security Update for trafficserver (DSA 4128-1)).

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

The vulnerability is also documented in the vulnerability database at Tenable (107228). Similar entry is available at VDB-113904. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Core Dump
Class: Input validation / Core Dump
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107228
Nessus Name: Apache Traffic Server 5.2.0 - 5.3.2 / 6.x < 6.2.2 / 7.x < 7.1.2 TLS Handshake DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 72601
OpenVAS Name: Apache Traffic Server (ATS) TLS Handshake DOS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

04/11/2017 🔍
02/27/2018 +322 days 🔍
02/27/2018 +0 days 🔍
02/27/2018 +0 days 🔍
02/27/2018 +0 days 🔍
02/28/2018 +1 days 🔍
03/08/2018 +8 days 🔍
01/09/2020 +672 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Not defined

CVE: CVE-2017-7671 (🔍)
GCVE (CVE): GCVE-0-2017-7671
GCVE (VulDB): GCVE-100-113905

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/28/2018 08:18
Updated: 01/09/2020 09:40
Changes: 02/28/2018 08:18 (71), 01/09/2020 09:40 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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