Swift Prometheus is a Swift client for the Prometheus monitoring system, supporting counters, gauges and histograms. In code which applies un-sanitized string values into metric names or labels, an attacker could make use of this and send a ?lang query parameter containing newlines, } or similar characters which can lead to the attacker taking over the exported format – including creating unbounded numbers of stored metrics, inflating server memory usage, or causing bogus metrics. This vulnerability is fixed in2.0.0-alpha.2.
Weakness
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Swift_prometheus | Apple | 2.0.0-alpha1 (including) | 2.0.0-alpha1 (including) |
Potential Mitigations
Related Attack Patterns
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References
- https://github.com/swift-server/swift-prometheus/commit/bfcd4bbfabe11aae4b035424ee9724582e288501
- https://github.com/swift-server/swift-prometheus/security/advisories/GHSA-x768-cvr2-345r
- https://github.com/swift-server/swift-prometheus/commit/bfcd4bbfabe11aae4b035424ee9724582e288501
- https://github.com/swift-server/swift-prometheus/security/advisories/GHSA-x768-cvr2-345r