CVE-2019-20104
Atlassian Crowd XML Entity Expansion Denial of Service
Description
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.
INFO
Published Date :
Feb. 6, 2020, 3:15 a.m.
Last Modified :
Jan. 1, 2022, 7:56 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-20104.
| URL | Resource |
|---|---|
| https://jira.atlassian.com/browse/CWD-5526 | Vendor Advisory |
| https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ | Exploit Technical Description |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-20104 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-20104 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jan. 01, 2022
Action Type Old Value New Value Changed Reference Type https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ No Types Assigned https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ Exploit, Technical Description Changed CPE Configuration OR *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions up to (excluding) 3.6.2 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.6.3 up to (excluding) 3.7.1 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.7.2 up to (excluding) 4.0.0 OR *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions up to (excluding) 3.2.11 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.8 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.4.0 up to (excluding) 3.4.7 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.5.0 up to (excluding) 3.5.2 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.6.0 up to (excluding) 3.6.2 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.6.3 up to (excluding) 3.7.1 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.7.2 up to (excluding) 4.0.0 -
CVE Modified by [email protected]
Feb. 10, 2020
Action Type Old Value New Value Added Reference https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 07, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://jira.atlassian.com/browse/CWD-5526 No Types Assigned https://jira.atlassian.com/browse/CWD-5526 Vendor Advisory Added CWE NIST CWE-776 Added CPE Configuration OR *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions up to (excluding) 3.6.2 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.6.3 up to (excluding) 3.7.1 *cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* versions from (including) 3.7.2 up to (excluding) 4.0.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-20104 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-20104
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.22 }} 0.00%
score
0.59515
percentile