Remote code execution in Jira Data Center and Jira Service Management Data Center



Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-36239
CWE-ID CWE-306
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Jira Data Center
Server applications / Other server solutions

Jira Service Management Data Center
Server applications / Other server solutions

Vendor Atlassian

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Missing authentication for critical function

EUVDB-ID: #VU55284

Risk: Critical

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red]

CVE-ID: CVE-2020-36239

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authentication in the Ehcache RMI network service, listening on ports 40001/TCP and 40011/TCP. A remote non-authenticated attacker with ability to connect to the affected port can send a specially crafted request and execute arbitrary code on the system.

Successful exploitation of the vulnerability allows a remote attacker to compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Jira Data Center: 6.3.0 - 8.16.2

Jira Service Management Data Center: 2.0.3 - 4.16.2

CPE2.3 External links

https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html
https://jira.atlassian.com/browse/JRASERVER-72566?src=confmacro


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.



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