Logstash up to 1.4.3/1.5.2 information disclosure

EntryHistoryDiffjsonxmlCTI

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.
6.3	$0-$5k	0.00

A vulnerability was found in Logstash up to 1.4.3/1.5.2. It has been classified as problematic. This affects an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Logstash 1.5.x before 1.5.3 and 1.4.x before 1.4.4 allows remote attackers to read communications between Logstash Forwarder agent and Logstash server.

The bug was discovered 07/21/2015. The weakness was shared 06/27/2017 by Security Team with Accenture Security Team as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2015-5378 since 07/06/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 85034 (FreeBSD : logstash -- SSL/TLS vulnerability with Lumberjack input (c470bcc7-33fe-11e5-a4a5-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370525 (Elasticsearch Logstash Man in the Middle Security Bypass Vulnerability (ESA-2015-07) (FREAK Attack)).

Upgrading to version 1.4.4 or 1.5.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (85034). The entries 75175, 102624, 102623 and 102625 are related to this item.

Productinfo

Name

Logstash

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

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: 85034
Nessus Name: FreeBSD : logstash -- SSL/TLS vulnerability with Lumberjack input (c470bcc7-33fe-11e5-a4a5-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 866690
OpenVAS Name: Elasticsearch Logstash CVE-2015-5378 Man in the Middle Security Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Logstash 1.4.4/1.5.3

Timelineinfo

07/06/2015 🔍
07/21/2015 +15 days 🔍
07/21/2015 +0 days 🔍
07/27/2015 +6 days 🔍
07/28/2015 +1 days 🔍
06/27/2017 +700 days 🔍
06/27/2017 +0 days 🔍
06/28/2017 +1 days 🔍
12/09/2022 +1990 days 🔍

Sourcesinfo

Advisory: 132800⛔
Researcher: Security Team
Organization: Accenture Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5378 (🔍)
SecurityFocus: 76015 - Logstash CVE-2015-5378 Man in the Middle Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 06/28/2017 07:50
Updated: 12/09/2022 10:13
Changes: 06/28/2017 07:50 (78), 10/20/2019 18:33 (3), 12/09/2022 10:13 (4)
Complete: 🔍