CSRF in Atlassian Application Links
CVE-2019-20100
The Atlassian Application Links plugin is vulnerable to cross-site request forgery (CSRF). The following versions are affected: all versions prior to 5.4.21, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.2, and from version 7.1.0 before version 7.1.3. The vulnerable plugin is used by Atlassian Jira Server and Data Center before version 8.7.0. An attacker could exploit this by tricking an administrative user into making malicious HTTP requests, allowing the attacker to enumerate hosts and open ports on the internal network where Jira server is present.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Atlassian Application Links — versions unspecified, 6.0.0, unspecified
- Atlassian Jira
- Atlassian Jira Data Center
- Atlassian Jira Server — versions unspecified
- Atlassian Jira Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.tenable.com/security/research/tra-2020-06 (Exploit, Third Party Advisory)
- ecosystem.atlassian.net/browse/APL-1390 (Vendor Advisory)
- jira.atlassian.com/browse/JRASERVER-70607 (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-20100?
- CVE-2019-20100 is a medium-severity vulnerability in Atlassian Application Links, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.7/10. Published 2020-02-12.
- How severe is CVE-2019-20100?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2019-20100 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.