VDB-127071 · CVE-2018-19443 · Nessus 119856

Tryton up to 5.0.0 Client bus.py session fixiation

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.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Tryton up to 5.0.0. It has been rated as critical. Affected is an unknown function of the file bus.py of the component Client. Performing a manipulation results in session fixiation. This vulnerability is identified as CVE-2018-19443. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Tryton up to 5.0.0. This affects an unknown function of the file bus.py of the component Client. The manipulation with an unknown input leads to a session fixiation vulnerability. CWE is classifying the issue as CWE-384. Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypted under certain circumstances in bus.py and jsonrpc.py. This connection attempt fails, but it contains in the header the current session of the user. This session could then be stolen by a man-in-the-middle.

The bug was discovered 11/22/2018. The weakness was released 11/22/2018 (Website). It is possible to read the advisory at bugs.tryton.org. This vulnerability is uniquely identified as CVE-2018-19443 since 11/22/2018. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 119856 (openSUSE Security Update : tryton (openSUSE-2018-1588)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171962 (OpenSUSE Security Update for tryton (openSUSE-SU-2018:4248-1)).

Upgrading to version 5.0.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119856). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Tryton

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Session fixiation
CWE: CWE-384
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: 119856
Nessus Name: openSUSE Security Update : tryton (openSUSE-2018-1588)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Tryton 5.0.1

Timelineinfo

11/22/2018 🔍
11/22/2018 +0 days 🔍
11/22/2018 +0 days 🔍
11/22/2018 +0 days 🔍
11/23/2018 +1 days 🔍
12/22/2018 +29 days 🔍
12/24/2018 +2 days 🔍
04/14/2020 +477 days 🔍

Sourcesinfo

Advisory: bugs.tryton.org
Status: Not defined

CVE: CVE-2018-19443 (🔍)
GCVE (CVE): GCVE-0-2018-19443
GCVE (VulDB): GCVE-100-127071

Entryinfo

Created: 11/23/2018 07:59
Updated: 04/14/2020 15:53
Changes: 11/23/2018 07:59 (72), 04/14/2020 15:53 (2)
Complete: 🔍
Cache ID: 216::103