Information disclosure in Jira Software Server - CVE-2019-8449
Published: September 18, 2019 / Updated: June 17, 2021
Vulnerability identifier: #VU21176
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-8449
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to an information expose in the "/rest/api/latest/groupuserpicker" resource. A remote attacker can enumerate usernames and gain unauthorized access to sensitive information on the system.
Affected software
Jira Software Server
How to mitigate CVE-2019-8449
Install updates from vendor's website.
Jira Software Server - update to 8.4.0
Links to Public Exploits and PoC-codes
- Exploit #5791 - Jira 8.3.4 - Information Disclosure (Username Enumeration) (June 17, 2021)
- Exploit #5340 - UserEnumJira (Serie de scripts para enumerar nombres de usuarios de JIRA a partir de vulnerabilidades conocidas (CVE-2020-14181, CVE-2019-3403, CVE-2019-8449...)) (May 3, 2021)
- Exploit #265 - CVE-2019-8449 (CVE-2019-8449 Exploit for Jira v2.1 - v8.3.4) (March 18, 2020)
- Exploit #266 - CVE-2019-8449 (User Enumeration Proof Of Concept Exploit for CVE-2019-8449) (March 18, 2020)