Remote code execution in Atlassian Jira Server

1) Template injection

EUVDB-ID: #VU19301

Risk: High

CVSSv4.0: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2019-11581

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the ContactAdministrators and the SendBulkMail actions if Contact Administrators Form is enabled. A remote non-authenticated attacker can send a specially crafted email message to the affected server and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that SMTP server is configured and either Contact Administrators Form is enabled.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Jira Software: 7.6.0 - 8.2.2

CPE2.3

• cpe:2.3:a:atlassian:jira:7.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.7:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.8:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.9:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:jira:7.6.10:*:*:*:*:*:*:*

External links

https://jira.atlassian.com/browse/JRASERVER-69532

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?

Yes. This vulnerability is being exploited in the wild.