#VU30163 Improper Authentication in Jira Software - CVE-2019-20412

Vulnerability identifier: #VU30163

Vulnerability risk: Medium

CVSSv4.0: 2.7 [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/E:U/U:Green]

CVE-ID: CVE-2019-20412

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jira Software
Client/Desktop applications / Other client software

Vendor: Atlassian

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The Convert Sub-Task to Issue page in affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate the following information via an Improper Authentication vulnerability: Workflow names; Project Key, if it is part of the workflow name; Issue Keys; Issue Types; Status Types. The affected versions are before version 7.13.9, and from version 8.0.0 before 8.4.2.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Jira Software: 8.0.0-m0025 - 8.0.4, 8.1.0 - 8.1.3, 8.2.0 - 8.2.6, 8.3.0 - 8.3.5, 8.4.0 - 8.4.1

---

External links
https://jira.atlassian.com/browse/JRASERVER-70882

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.