Vulnerability Description
A Zip Slip vulnerability was found in the oc binary in openshift-clients where an arbitrary file write is achieved by using a specially crafted raw container image (.tar file) which contains symbolic links. The vulnerability is limited to the command `oc image extract`. If a symbolic link is first created pointing within the tarball, this allows further symbolic links to bypass the existing path check. This flaw allows the tarball to create links outside the tarball's parent directory, allowing for executables or configuration files to be overwritten, resulting in arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions up to and including openshift-clients-4.7.0-202104250659.p0.git.95881af are affected.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Openshift Container Platform | <= 4.7 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2020-27833Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1905945Issue TrackingVendor Advisory
- https://access.redhat.com/security/cve/CVE-2020-27833Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1905945Issue TrackingVendor Advisory
FAQ
What is CVE-2020-27833?
CVE-2020-27833 is a vulnerability with a CVSS score of 7.1 (HIGH). A Zip Slip vulnerability was found in the oc binary in openshift-clients where an arbitrary file write is achieved by using a specially crafted raw container image (.tar file) which contains symbolic ...
How severe is CVE-2020-27833?
CVE-2020-27833 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27833?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Openshift Container Platform.