Atlassian Crowd up to 3.6.1/3.7.0 OpenID Client Application xml entity expansion
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in Atlassian Crowd up to 3.6.1/3.7.0. Affected by this vulnerability is some unknown processing of the component OpenID Client Application. The manipulation with an unknown input leads to a xml entity expansion vulnerability. The CWE definition for the vulnerability is CWE-776. The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities. As an impact it is known to affect availability. The summary by CVE is:
The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.
The weakness was presented 02/06/2020. This vulnerability is known as CVE-2019-20104 since 12/30/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 3.6.2 or 3.7.1 eliminates this vulnerability.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB 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: 🔍
CVSSv2
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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: 🔍
Exploiting
Class: Xml entity expansionCWE: CWE-776
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 |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Atlassian Crowd 3.6.2/3.7.1
Timeline
12/30/2019 🔍02/06/2020 🔍
02/06/2020 🔍
03/28/2024 🔍
Sources
Advisory: jira.atlassian.comStatus: Not defined
CVE: CVE-2019-20104 (🔍)
Entry
Created: 02/06/2020 12:21Updated: 03/28/2024 16:34
Changes: 02/06/2020 12:21 (36), 02/06/2020 12:26 (17), 03/28/2024 16:34 (18)
Complete: 🔍
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