Path Traversal in Kubernetes Java
CVE-2020-8570
Kubernetes Java client libraries in version 10.0.0 and versions prior to 9.0.1 allow writes to paths outside of the current directory when copying multiple files from a remote pod which sends a maliciously crafted archive. This can potentially overwrite any files on the system of the process executing the client code.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Kubernetes Java
- Kubernetes Java Client — versions all versions prior to 9.0, 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/g/kubernetes-security-announce/c/sd5h73sFPrg (Mailing List, Third Party Advisory)
- github.com/kubernetes-client/java/issues/1491 (Patch, Third Party Advisory, Issue Tracking)
- lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef8… (mailing-list)
- lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e… (mailing-list)
- lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f… (mailing-list)
- lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d… (mailing-list)
Frequently asked questions
- What is CVE-2020-8570?
- CVE-2020-8570 is a critical-severity vulnerability in Kubernetes Java, classified under Relative Path Traversal. CVSS score: 9.1/10. Published 2021-01-21.
- How severe is CVE-2020-8570?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2020-8570 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.