x/vulndb: potential Go vuln in github.com/tektoncd/pipeline: CVE-2023-37264

[GoVulnBot]

CVE-2023-37264 references github.com/tektoncd/pipeline, which may be a Go module.

Description:
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 0.35.0, pipelines do not validate child UIDs, which means that a user that has access to create TaskRuns can create their own Tasks that the Pipelines controller will accept as the child Task. While the software stores and validates the PipelineRun's (api version, kind, name, uid) in the child Run's OwnerReference, it only store (api version, kind, name) in the ChildStatusReference. This means that if a client had access to create TaskRuns on a cluster, they could create a child TaskRun for a pipeline with the same name + owner reference, and the Pipeline controller picks it up as if it was the original TaskRun. This is problematic since it can let users modify the config of Pipelines at runtime, which violates SLSA L2 Service Generated / Non-falsifiable requirements. This issue can be used to trick the Pipeline controller into associating unrelated Runs to the Pipeline, feeding its data through the rest of the Pipeline. This requires access to create TaskRuns, so impact may vary depending on one Tekton setup. If users already have unrestricted access to create any Task/PipelineRun, this does not grant any additional capabilities. As of time of publication, there are no known patches for this issue.

References:

• NIST: https://nvd.nist.gov/vuln/detail/CVE-2023-37264
• JSON: https://github.com/CVEProject/cvelist/tree/d36870b9bccfdcbaf5af18833406674749ddb034/2023/37xxx/CVE-2023-37264.json
• advisory: GHSA-w2h3-vvvq-3m53
• web: https://github.com/tektoncd/pipeline/blob/2d38f5fa840291395178422d34b36b1bc739e2a2/pkg/reconciler/pipelinerun/pipelinerun.go#L1358-L1372
• web: https://pkg.go.dev/github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1#ChildStatusReference
• Imported by: https://pkg.go.dev/github.com/tektoncd/pipeline?tab=importedby

Cross references:
No existing reports found with this module or alias.

See doc/triage.md for instructions on how to triage this report.

modules:
    - module: github.com/tektoncd/pipeline
      vulnerable_at: 0.49.0
      packages:
        - package: pipeline
description: |-
    Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style
    pipelines. Starting in version 0.35.0, pipelines do not validate child UIDs,
    which means that a user that has access to create TaskRuns can create their own
    Tasks that the Pipelines controller will accept as the child Task. While the
    software stores and validates the PipelineRun's (api version, kind, name, uid)
    in the child Run's OwnerReference, it only store (api version, kind, name) in
    the ChildStatusReference. This means that if a client had access to create
    TaskRuns on a cluster, they could create a child TaskRun for a pipeline with the
    same name + owner reference, and the Pipeline controller picks it up as if it
    was the original TaskRun. This is problematic since it can let users modify the
    config of Pipelines at runtime, which violates SLSA L2 Service Generated /
    Non-falsifiable requirements. This issue can be used to trick the Pipeline
    controller into associating unrelated Runs to the Pipeline, feeding its data
    through the rest of the Pipeline. This requires access to create TaskRuns, so
    impact may vary depending on one Tekton setup. If users already have
    unrestricted access to create any Task/PipelineRun, this does not grant any
    additional capabilities. As of time of publication, there are no known patches
    for this issue.
cves:
    - CVE-2023-37264
references:
    - advisory: https://github.com/tektoncd/pipeline/security/advisories/GHSA-w2h3-vvvq-3m53
    - web: https://github.com/tektoncd/pipeline/blob/2d38f5fa840291395178422d34b36b1bc739e2a2/pkg/reconciler/pipelinerun/pipelinerun.go#L1358-L1372
    - web: https://pkg.go.dev/github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1#ChildStatusReference

[gopherbot]

Change https://go.dev/cl/509516 mentions this issue: data/excluded: batch add 6 excluded reports

[gopherbot]

Change https://go.dev/cl/592761 mentions this issue: data/reports: unexclude 75 reports

[gopherbot]

Change https://go.dev/cl/606787 mentions this issue: data/reports: unexclude 20 reports (7)