VDB-130873 · CVE-2018-20238 · BID 107036

Atlassian Crowd up to 3.2.6/3.3.3 Session Expiration 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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Atlassian Crowd up to 3.2.6/3.3.3. The affected element is an unknown function of the component Session Expiration. This manipulation causes session fixiation. This vulnerability appears as CVE-2018-20238. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Atlassian Crowd up to 3.2.6/3.3.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Session Expiration. The manipulation with an unknown input leads to a session fixiation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Various rest resources in Atlassian Crowd before version 3.2.7 and from version 3.3.0 before version 3.3.4 allow remote attackers to authenticate using an expired user session via an insufficient session expiration vulnerability.

The bug was discovered 02/13/2019. The weakness was presented 02/13/2019 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2018-20238 since 12/19/2018. The attack can be launched remotely. The successful exploitation needs a single authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 3.2.7 or 3.3.4 eliminates this vulnerability.

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

Productinfo

Vendor

Atlassian

Name

Crowd

Version

License

free

Website

Vendor: https://www.atlassian.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
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: 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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Crowd 3.2.7/3.3.4

Timelineinfo

12/19/2018 🔍
02/13/2019 +56 days 🔍
02/13/2019 +0 days 🔍
02/14/2019 +1 days 🔍
07/10/2023 +1607 days 🔍

Sourcesinfo

Vendor: atlassian.com

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20238 (🔍)
GCVE (CVE): GCVE-0-2018-20238
GCVE (VulDB): GCVE-100-130873
SecurityFocus: 107036

Entryinfo

Created: 02/14/2019 11:29
Updated: 07/10/2023 11:19
Changes: 02/14/2019 11:29 (56), 05/10/2020 14:36 (3), 07/10/2023 11:19 (4)
Complete: 🔍
Cache ID: 216::103