CVE-2020-2255
First published: Wed Sep 16 2020(Updated: )
### Updated 2020-09-16 This entry previously misidentified the problematic behavior. The HTTP request itself is legitimate, but only authorized users should be able to perform it. ### Original Description Blue Ocean Plugin 1.23.2 and earlier does not perform permission checks in several HTTP endpoints implementing connection tests. This allows attackers with Overall/Read permission to connect to an attacker-specified URL. Blue Ocean Plugin 1.23.3 requires Item/Create permission to perform these connection tests.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/io.jenkins.blueocean:blueocean | <=1.23.2 | 1.23.3 |
| Jenkins Blue Ocean | <=1.23.2 | |
| redhat/jenkins | <2-plugins-0:3.11.1603460090-1.el7 | 2-plugins-0:3.11.1603460090-1.el7 |
| redhat/jenkins | <2-plugins-0:4.6.1601368321-1.el8 | 2-plugins-0:4.6.1601368321-1.el8 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-2255
- https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1961
- http://www.openwall.com/lists/oss-security/2020/09/16/3
- https://github.com/jenkinsci/blueocean-plugin/commit/659a66aff0d0ad693eab9d2807985d591e102aab
- https://github.com/advisories/GHSA-vc7g-4269-f7hw (Advisory)
- https://www.openwall.com/lists/oss-security/2020/09/16/3
- https://access.redhat.com/errata/RHSA-2020:4297
- https://access.redhat.com/security/cve/cve-2020-2255
- https://access.redhat.com/errata/RHSA-2020:5102
- https://bugzilla.redhat.com/show_bug.cgi?id=1880460
- https://www.cve.org/CVERecord?id=CVE-2020-2255 https://nvd.nist.gov/vuln/detail/CVE-2020-2255 https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1961 https://www.openwall.com/lists/oss-security/2020/09/16/3
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID is CVE-2020-2255.
What is the severity of CVE-2020-2255?
The severity of CVE-2020-2255 is medium.
How does CVE-2020-2255 impact Jenkins Blue Ocean Plugin?
CVE-2020-2255 allows attackers with Overall/Read permission to connect to an attacker-specified URL.
What is the affected software version range for CVE-2020-2255?
Jenkins Blue Ocean Plugin version 1.23.2 and earlier are affected by CVE-2020-2255.
Are there any fixes available for CVE-2020-2255?
Yes, the fix for CVE-2020-2255 is available in Jenkins Blue Ocean Plugin version 1.23.3.
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