Vector is a high-performance observability data pipeline. From 0.10.0 until 0.57.0, the file sink renders its templated path from event fields and opens the result without confining it to an intended directory. When an untrusted source supplies an event field used by the path template, the value can contain an absolute path or parent-directory traversal, causing Vector to create parent directories and create or overwrite files outside the intended location with the Vector process privileges.
The resulting file write can modify sensitive files and can lead to code execution when a scheduled task, authorization file, or subsequently executed script is targeted. This issue is fixed in version 0.57.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/vectordotdev/vector/commit/6951064ed1d295fbff67a5ba7da5971fc…
security-advisories@github.com
https://github.com/vectordotdev/vector/commit/8832452f57afb536ea0de53a093f9fd1b…
security-advisories@github.com
https://github.com/vectordotdev/vector/pull/25820
security-advisories@github.com
https://github.com/vectordotdev/vector/pull/25830
security-advisories@github.com
https://github.com/vectordotdev/vector/releases/tag/v0.57.0
security-advisories@github.com
https://github.com/vectordotdev/vector/security/advisories/GHSA-6342-xwvw-c637
security-advisories@github.com