CVE-2019-8449 : The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allow

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

Published 2019-09-11 14:15:12

Updated 2022-01-01 20:19:29

Source Atlassian

View at NVD, CVE.org

Vulnerability category: Information leak

Products affected by CVE-2019-8449

Atlassian » Jira
Versions before (<) 8.4.0
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2019-8449

Top countries where our scanners detected CVE-2019-8449

Top open port discovered on systems with this issue 80

IPs affected by CVE-2019-8449 2,972

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2019-8449!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-8449

EPSS FAQ

30.78%

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

~ 97 %

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

CVSS scores for CVE-2019-8449

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

CWE ids for CVE-2019-8449

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-2019-8449

http://packetstormsecurity.com/files/156172/Jira-8.3.4-Information-Disclosure.html

Jira 8.3.4 Information Disclosure ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://jira.atlassian.com/browse/JRASERVER-69796

[JRASERVER-69796] User enumeration through the groupuserpicker api resource - CVE-2019-8449 - Create and track feature requests for Atlassian products.
Issue Tracking;Vendor Advisory