One Article Review
| Source |  CVE Liste |
|---|---|
| Identifiant | 2302251 |
| Date de publication | 2021-02-05 22:15:12 (vue: 2021-02-06 00:05:49) |
| Titre | CVE-2021-21303 |
| Texte | Helm is open-source software which is essentially "The Kubernetes Package Manager". Helm is a tool for managing Charts. Charts are packages of pre-configured Kubernetes resources. In Helm from version 3.0 and before version 3.5.2, there a few cases where data loaded from potentially untrusted sources was not properly sanitized. When a SemVer in the `version` field of a chart is invalid, in some cases Helm allows the string to be used "as is" without sanitizing. Helm fails to properly sanitized some fields present on Helm repository `index.yaml` files. Helm does not properly sanitized some fields in the `plugin.yaml` file for plugins In some cases, Helm does not properly sanitize the fields in the `Chart.yaml` file. By exploiting these attack vectors, core maintainers were able to send deceptive information to a terminal screen running the `helm` command, as well as obscure or alter information on the screen. In some cases, we could send codes that terminals used to execute higher-order logic, like clearing a terminal screen. Further, during evaluation, the Helm maintainers discovered a few other fields that were not properly sanitized when read out of repository index files. This fix remedies all such cases, and once again enforces SemVer2 policies on version fields. All users of the Helm 3 should upgrade to the fixed version 3.5.2 or later. Those who use Helm as a library should verify that they either sanitize this data on their own, or use the proper Helm API calls to sanitize the data. |
| Envoyé | Oui |
| Condensat | 2021 21303 `chart `helm` `index `plugin `version` able again all allows alter api are attack before calls cases chart charts clearing codes command configured core could cve data deceptive discovered does during either enforces essentially evaluation execute exploiting fails field fields file files fix fixed from further helm higher index information invalid kubernetes later library like loaded logic maintainers manager managing not obscure once open order other out own package packages plugins policies potentially pre present proper properly read remedies repository resources running sanitize sanitized sanitizing screen semver semver2 send should software some source sources string such terminal terminals these those tool untrusted upgrade use used users vectors verify version well when where which who without yaml` |
| Tags | Tool |
| Stories | Uber |
| Notes | |
| Move | 
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