CVE-2020-26943

Advisory

An issue was discovered in OpenStack blazar-dashboard before 1.3.1, 2.0.0, and 3.0.0. A user allowed to access the Blazar dashboard in Horizon may trigger code execution on the Horizon host as the user the Horizon service runs under (because the Python eval function is used). This may result in Horizon host unauthorized access and further compromise of the Horizon service. All setups using the Horizon dashboard with the blazar-dashboard plugin are affected. See: CVE-2020-26943.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

An issue was discovered in OpenStack blazar-dashboard before 1.3.1, 2.0.0, and 3.0.0. A user allowed to access the Blazar dashboard in Horizon may trigger code execution on the Horizon host as the user the Horizon service runs under (because the Python eval function is used). This may result in Horizon host unauthorized access and further compromise of the Horizon service. All setups using the Horizon dashboard with the blazar-dashboard plugin are affected.


CONFIRM:https://security.openstack.org/ossa/OSSA-2020-007.html: https://security.openstack.org/ossa/OSSA-2020-007.html
MISC:https://launchpad.net/bugs/1895688: https://launchpad.net/bugs/1895688
MISC:https://review.opendev.org/755810: https://review.opendev.org/755810
MISC:https://review.opendev.org/755812: https://review.opendev.org/755812
MISC:https://review.opendev.org/755813: https://review.opendev.org/755813
MISC:https://review.opendev.org/755814: https://review.opendev.org/755814
MISC:https://review.opendev.org/756064: https://review.opendev.org/756064

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26943
• https://launchpad.net/bugs/1895688
• https://review.opendev.org/755810
• https://security.openstack.org/ossa/OSSA-2020-007.html
• https://review.opendev.org/755812
• https://review.opendev.org/755814
• https://review.opendev.org/755813
• https://review.opendev.org/756064
• http://www.openwall.com/lists/oss-security/2020/10/16/5