CVE-2019-20105 : The EditApplinkServlet resource in the Atlassian Application Links plugin before version 5.4.20, from version 6.0.0 befo

The EditApplinkServlet resource in the Atlassian Application Links plugin before version 5.4.20, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.1, and from version 7.1.0 before version 7.1.3 allows remote attackers who have obtained access to administrator's session to access the EditApplinkServlet resource without needing to re-authenticate to pass "WebSudo" in products that support "WebSudo" through an improper access control vulnerability.

Published 2020-03-17 03:15:11

Updated 2020-08-24 17:37:01

Source Atlassian

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2019-20105

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 37 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-20105

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:P/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
4.9	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N	1.2	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2019-20105

CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-20105

https://jira.atlassian.com/browse/JRASERVER-70526

[JRASERVER-70526] Improper Authorization in Applinks - CVE-2019-20105 - Create and track feature requests for Atlassian products.
Vendor Advisory
https://ecosystem.atlassian.net/browse/APL-1391

[APL-1391] Authorisation bypass in the ViewUpgrades resource - CVE-2019-20105 - Ecosystem Jira
Vendor Advisory

Products affected by CVE-2019-20105

Atlassian » Application Links
Versions from including (>=) 7.1.0 and before (<) 7.1.3
cpe:2.3:a:atlassian:application_links:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Application Links
Versions from including (>=) 6.1.0 and before (<) 6.1.2
cpe:2.3:a:atlassian:application_links:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Application Links
Versions up to, including, (<=) 5.4.20
cpe:2.3:a:atlassian:application_links:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Application Links
Versions from including (>=) 6.0.0 and up to, including, (<=) 6.0.12
cpe:2.3:a:atlassian:application_links:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Application Links » Version: 7.0.0
cpe:2.3:a:atlassian:application_links:7.0.0:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2019-20105

Exploit prediction scoring system (EPSS) score for CVE-2019-20105

CVSS scores for CVE-2019-20105

CWE ids for CVE-2019-20105

References for CVE-2019-20105

Products affected by CVE-2019-20105