CVE-2020-26294
Exposure of server configuration in github.com/go-vela/server
Impact
### Impact _What kind of vulnerability is it? Who is impacted?_ * The ability to expose configuration set in the [Vela server](https://github.com/go-vela/server) via [pipeline template functionality](https://go-vela.github.io/docs/templates/overview/). * It impacts all users of Vela. Sample of template exposing server configuration [using Sprig's `env` function](http://masterminds.github.io/sprig/os.html): ```yaml metadata: template: true steps: - name: sample image: alpine:latest commands: # OAuth client ID for Vela <-> GitHub communication - echo {{ env "VELA_SOURCE_CLIENT" }} # secret used for server <-> worker communication - echo {{ env "VELA_SECRET" }} ``` ### Patches _Has the problem been patched? What versions should users upgrade to?_ * Upgrade to `0.6.1` #### Additional Recommended Action(s) * Rotate all secrets ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ * No ### For more information If you have any questions or comments about this advisory: * Email us at [vela@target.com](mailto:vela@target.com)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/go-vela/compiler | < 0.6.1 | 0.6.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Target | Compiler | before 0.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/go-vela/compiler/commit/f1ace5f8a05c95c4d02264556e38a959ee2d9bda
- https://github.com/go-vela/compiler/security/advisories/GHSA-gv2h-gf8m-r68j
- https://pkg.go.dev/github.com/go-vela/compiler/compiler
- https://github.com/advisories/GHSA-gv2h-gf8m-r68j
- https://nvd.nist.gov/vuln/detail/CVE-2020-26294
- https://github.com/helm/helm/blob/6297c021cbda1483d8c08a8ec6f4a99e38be7302/pkg/engine/funcs.go#L46-L47