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Helm » Helm » * * * * : Security Vulnerabilities
Cpe Name: cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*
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CVE ID
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CWE ID
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# of Exploits
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Vulnerability Type(s)
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Publish Date
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Update Date
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Score
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Gained Access Level
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Access
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Complexity
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Authentication
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Conf.
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Integ.
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Avail.
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1 |
CVE-2021-32690 |
200 |
|
+Info |
2021-06-16 |
2021-06-25 |
5.0 |
None |
Remote |
Low |
Not required |
Partial |
None |
None |
Helm is a tool for managing Charts (packages of pre-configured Kubernetes resources). In versions of helm prior to 3.6.1, a vulnerability exists where the username and password credentials associated with a Helm repository could be passed on to another domain referenced by that Helm repository. This issue has been resolved in 3.6.1. There is a workaround through which one may check for improperly passed credentials. One may use a username and password for a Helm repository and may audit the Helm repository in order to check for another domain being used that could have received the credentials. In the `index.yaml` file for that repository, one may look for another domain in the `urls` list for the chart versions. If there is another domain found and that chart version was pulled or installed, the credentials would be passed on. |
2 |
CVE-2021-21303 |
74 |
|
Exec Code |
2021-02-05 |
2021-02-11 |
4.0 |
None |
Remote |
Low |
??? |
None |
Partial |
None |
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. |
3 |
CVE-2020-15187 |
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|
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2020-09-17 |
2021-11-18 |
6.5 |
None |
Remote |
Low |
??? |
Partial |
Partial |
Partial |
In Helm before versions 2.16.11 and 3.3.2, a Helm plugin can contain duplicates of the same entry, with the last one always used. If a plugin is compromised, this lowers the level of access that an attacker needs to modify a plugin's install hooks, causing a local execution attack. To perform this attack, an attacker must have write access to the git repository or plugin archive (.tgz) while being downloaded (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 2.16.11 and Helm 3.3.2. As a possible workaround make sure to install plugins using a secure connection protocol like SSL. |
4 |
CVE-2020-15186 |
74 |
|
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2020-09-17 |
2021-11-18 |
4.0 |
None |
Remote |
Low |
??? |
None |
Partial |
None |
In Helm before versions 2.16.11 and 3.3.2 plugin names are not sanitized properly. As a result, a malicious plugin author could use characters in a plugin name that would result in unexpected behavior, such as duplicating the name of another plugin or spoofing the output to `helm --help`. This issue has been patched in Helm 3.3.2. A possible workaround is to not install untrusted Helm plugins. Examine the `name` field in the `plugin.yaml` file for a plugin, looking for characters outside of the [a-zA-Z0-9._-] range. |
5 |
CVE-2020-15185 |
74 |
|
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2020-09-17 |
2020-10-02 |
4.0 |
None |
Remote |
Low |
??? |
None |
Partial |
None |
In Helm before versions 2.16.11 and 3.3.2, a Helm repository can contain duplicates of the same chart, with the last one always used. If a repository is compromised, this lowers the level of access that an attacker needs to inject a bad chart into a repository. To perform this attack, an attacker must have write access to the index file (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 3.3.2 and 2.16.11. A possible workaround is to manually review the index file in the Helm repository cache before installing software. |
6 |
CVE-2020-15184 |
74 |
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2020-09-17 |
2021-11-18 |
4.0 |
None |
Remote |
Low |
??? |
None |
Partial |
None |
In Helm before versions 2.16.11 and 3.3.2 there is a bug in which the `alias` field on a `Chart.yaml` is not properly sanitized. This could lead to the injection of unwanted information into a chart. This issue has been patched in Helm 3.3.2 and 2.16.11. A possible workaround is to manually review the `dependencies` field of any untrusted chart, verifying that the `alias` field is either not used, or (if used) does not contain newlines or path characters. |
7 |
CVE-2020-11013 |
200 |
|
+Info |
2020-04-24 |
2020-07-06 |
4.0 |
None |
Remote |
Low |
??? |
Partial |
None |
None |
Their is an information disclosure vulnerability in Helm from version 3.1.0 and before version 3.2.0. `lookup` is a Helm template function introduced in Helm v3. It is able to lookup resources in the cluster to check for the existence of specific resources and get details about them. This can be used as part of the process to render templates. The documented behavior of `helm template` states that it does not attach to a remote cluster. However, a the recently added `lookup` template function circumvents this restriction and connects to the cluster even during `helm template` and `helm install|update|delete|rollback --dry-run`. The user is not notified of this behavior. Running `helm template` should not make calls to a cluster. This is different from `install`, which is presumed to have access to a cluster in order to load resources into Kubernetes. Helm 2 is unaffected by this vulnerability. A malicious chart author could inject a `lookup` into a chart that, when rendered through `helm template`, performs unannounced lookups against the cluster a user's `KUBECONFIG` file points to. This information can then be disclosed via the output of `helm template`. This issue has been fixed in Helm 3.2.0 |
8 |
CVE-2020-4053 |
22 |
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Dir. Trav. |
2020-06-16 |
2020-07-06 |
8.5 |
None |
Remote |
Medium |
??? |
Complete |
Complete |
Complete |
In Helm greater than or equal to 3.0.0 and less than 3.2.4, a path traversal attack is possible when installing Helm plugins from a tar archive over HTTP. It is possible for a malicious plugin author to inject a relative path into a plugin archive, and copy a file outside of the intended directory. This has been fixed in 3.2.4. |
9 |
CVE-2019-1010275 |
295 |
|
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2019-07-17 |
2019-10-09 |
7.5 |
None |
Remote |
Low |
Not required |
Partial |
Partial |
Partial |
helm Before 2.7.2 is affected by: CWE-295: Improper Certificate Validation. The impact is: Unauthorized clients could connect to the server because self-signed client certs were aloowed. The component is: helm (many files updated, see https://github.com/helm/helm/pull/3152/files/1096813bf9a425e2aa4ac755b6c991b626dfab50). The attack vector is: A malicious client could connect to the server over the network. The fixed version is: 2.7.2. |
10 |
CVE-2019-1000008 |
22 |
|
Dir. Trav. |
2019-02-04 |
2019-02-15 |
4.3 |
None |
Remote |
Medium |
Not required |
None |
Partial |
None |
All versions of Helm between Helm >=2.0.0 and < 2.12.2 contains a CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in The commands `helm fetch --untar` and `helm lint some.tgz` that can result when chart archive files are unpacked a file may be unpacked outside of the target directory. This attack appears to be exploitable via a victim must run a helm command on a specially crafted chart archive. This vulnerability appears to have been fixed in 2.12.2. |
11 |
CVE-2019-18658 |
59 |
|
DoS Exec Code |
2019-11-12 |
2019-11-14 |
7.5 |
None |
Remote |
Low |
Not required |
Partial |
Partial |
Partial |
In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue. |
Total number of vulnerabilities : 11
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