client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`; not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods.
CVE-2022-21698 - High Severity Vulnerability
github.com/prometheus/client_golang-v1.1.0
Prometheus instrumentation library for Go applications
Library home page: https://proxy.golang.org/github.com/prometheus/client_golang/@v/v1.1.0.zip
Path to dependency file: /app/go/go.mod
Path to vulnerable library: /app/go/go.mod
Dependency Hierarchy: - github.com/hyperledger/fabric-sdk-go-v1.0.0-beta3 (Root Library) - :x: **github.com/prometheus/client_golang-v1.1.0** (Vulnerable Library)
github.com/docker/distribution-v2.7.1
The toolkit to pack, ship, store, and deliver container content
Library home page: https://proxy.golang.org/github.com/docker/distribution/@v/v2.7.1+incompatible.zip
Path to dependency file: /chaincode/simple/go/go.mod
Path to vulnerable library: /chaincode/simple/go/go.mod,/chaincode/samplecc/go/go.mod
Dependency Hierarchy: - github.com/hyperledger/fabric-v1.4.1 (Root Library) - github.com/fsouza/go-dockerclient-v1.6.5 - github.com/docker/docker-v1.4.2-0.20191101170500-ac7306503d23 - :x: **github.com/docker/distribution-v2.7.1** (Vulnerable Library)
Found in HEAD commit: 655167764fcdebd1047d2f63249a7596884c4b03
Found in base branch: main
client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`; not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods.
Publish Date: 2022-02-15
URL: CVE-2022-21698
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7p
Release Date: 2022-02-15
Fix Resolution: v1.11.1
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