vulnerability / NVI-00015043 / Revision 1
Velero vulnerable to file path traversal when extracting from backup's tarball
GitHub lists this reviewed advisory for github.com/vmware-tanzu/velero. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
github.com/vmware-tanzu/velero
source listed< 1.18.1
### Impact _What kind of vulnerability is it? Who is impacted?_ If the attacker compromises the backup's object storage backend and uploads a malicious backup tarball including file names like the following: * ../../../tmp/escape_1 -> file created at /tmp/escape_1 * ../../../../../../../../tmp/escape_2 -> file created at /tmp/escape_2 * ../../../tmp/cron_poc -> would be /etc/cron.d/backdoor in real attack * ../../../tmp/ssh_poc -> would be ~/.ssh/authorized_keys * ../../../tmp/kubeconfig_poc -> would be ~/.kube/config It's possible that extracting files from the tarball during restore can overwrite sensitive files in the Velero pod filesystem. ### Patches _Has the problem been patched? What versions should users upgrade to?_ By far, there is no patch yet. We are working on the main branch, then cherry-pick to the release-1.18 for v1.18.1 patch. ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ There is no workaround, but the good news is that keeping your OSS safe will prevent the vulnerability.
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-j2g6-362q-6qc6 ↗
GitHub Advisory Database · vendor advisory
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Public revision history
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- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.