What is CVE-2019-11580?

CVE-2019-11580 is a critical-severity vulnerability in Atlassian Crowd. CVSS score: 9.8/10. Published 2019-06-03.

How severe is CVE-2019-11580?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-11580 known to be exploited?

Yes. CVE-2019-11580 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 36 public proof-of-concept repositories are indexed.

Vulnerability in Atlassian Crowd

CVE-2019-11580

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), from version 3.3.0 before 3.3.5 (the fixed version for 3.3.x), and from version 3.4.0 before 3.4.4 (the fixed version for 3.4.x) are affected by this vulnerability.

EPSS: 0.954 (99.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Atlassian Crowd — versions 2.1.0, unspecified, 3.1.0

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

security@atlassian.com (x_refsource_MISC, Mitigation, Issue Tracking, Vendor Advisory)
security@atlassian.com (vdb-entry, Broken Link, x_refsource_BID)
security@atlassian.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2019-11580?: CVE-2019-11580 is a critical-severity vulnerability in Atlassian Crowd. CVSS score: 9.8/10. Published 2019-06-03.
How severe is CVE-2019-11580?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-11580 known to be exploited?: Yes. CVE-2019-11580 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 36 public proof-of-concept repositories are indexed.