CVE-2022-21698 (High) detected in github.com/prometheus/client_golang-v0.9.4 - autoclosed

[mend-bolt-for-github[bot]]

CVE-2022-21698 - High Severity Vulnerability

Vulnerable Library - github.com/prometheus/client_golang-v0.9.4

Prometheus instrumentation library for Go applications

Library home page: https://proxy.golang.org/github.com/prometheus/client_golang/@v/v0.9.4.zip

Path to dependency file: /go.mod

Path to vulnerable library: /go/pkg/mod/cache/download/github.com/prometheus/client_golang/@v/v0.9.4.mod

Dependency Hierarchy: - :x: **github.com/prometheus/client_golang-v0.9.4** (Vulnerable Library)

Found in HEAD commit: 62eb1f7b1cb792bbe607b277d53b733969f4b2ca

Found in base branch: master

Vulnerability Details

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

CVSS 3 Score Details (7.5)

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.

Suggested Fix

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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[secure-code-warrior-for-github[bot]]

Micro-Learning Topic: Denial of service (Detected by phrase)

Matched on "Denial of Service"

The Denial of Service (DoS) attack is focused on making a resource (site, application, server) unavailable for the purpose it was designed. There are many ways to make a service unavailable for legitimate users by manipulating network packets, programming, logical, or resources handling vulnerabilities, among others. Source: https://www.owasp.org/index.php/Denial_of_Service

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Micro-Learning Topic: Vulnerable library (Detected by phrase)

Matched on "Vulnerable Library"

What is this? (2min video)

Use of vulnerable components will introduce weaknesses into the application. Components with published vulnerabilities will allow easy exploitation as resources will often be available to automate the process.

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[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.