CISA KEV · Known exploitedCritical

CVE-2019-11580

Atlassian Crowd and Crowd Data Center

Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled in release builds. Attackers who can send unauthenticated or authenticated requests to a Crowd or Crowd Data Center instance can exploit this vulnerability to install arbitrary plugins, which permits remote code execution on systems running a vulnerable version of Crowd or Crowd Data Center. All versions of Crowd from version 2.1.0 before 3.0.5 (the fixed version for 3.0.x), from version 3.1.0 before 3.1.6 (the fixed version for 3.1.x), from version 3.2.0 before 3.2.8 (the fixed version for 3.2.x...

CVSS: 9.8
EPSS: 95.4%
CISA KEV: Listed
Published: 2019.06.03

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability95.4%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: Atlassian Crowd and Crowd Data Center
Affected versions: 2.1.0, unspecified, 3.1.0, 3.2.0, 3.3.0, 3.4.0, >= 2.1.0 < 3.0.5, >= 3.1.0 < 3.1.6, >= 3.2.0 < 3.2.8, >= 3.3.0 < 3.3.5, >= 3.4.0 < 3.4.4
Fixed versions: 3.0.5, 3.1.6, 3.2.8, 3.3.5, 3.4.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03

1
Identify
Confirm that Atlassian Crowd and Crowd Data Center and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: Not available
KEV added: 2021.11.03
Ransomware use: 확인됨