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GHSA-8q3c-rjr9-xxrp
github.com/victoriametrics/victoriametricsgithub.com/victoriametrics/victoriametricsgithub.com/victoriametrics/victoriametricsSummary
The VictoriaMetrics vmrestore utility does not validate backup part path components before writing restored files to the local filesystem. An attacker who can provide or modify a backup source can craft object names containing .. path components that cause vmrestore to write files outside the intended -storageDataPath restore root, subject to the permissions of the vmrestore process.
Impact
An attacker who can supply or modify the backup source -- for example by writing malicious object names to a compromised or misconfigured storage bucket -- can cause arbitrary files to be created or overwritten on the host running vmrestore, within the limits of the process's filesystem permissions.
Patches
Versions 1.146.0, 1.136.12, 1.122.25
Resources
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.146.0
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.12
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.25
Note
VictoriaMetrics' security model assumes backup sources are trusted and access-controlled. This vulnerability requires an attacker to have write access to the backup storage (e.g. S3, GCS, or Azure Blob Storage bucket) used as the -src for vmrestore. Under a correctly secured deployment where backup storage access is properly restricted, unauthorized exploitation of this issue should not be possible. Users are advised to follow the principle of least privilege when granting access to backup storage buckets.
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The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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