ghsa-96jw-3xw4-mq9p
Vulnerability from github
Items (like jobs) can be organized hierarchically in Jenkins, using the Folders Plugin or something similar. An item is expected to be accessible only if all its ancestors are accessible as well.
Matrix Authorization Strategy Plugin 2.6.5 and earlier does not correctly perform permission checks to determine whether an item should be accessible.
This allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.\n\nMatrix Authorization Strategy Plugin 2.6.6 requires Item/Read permission on parent items to grant Item/Read permission on an individual item.
As a workaround in older releases, do not grant permissions on individual items to users who do not have access to parent items.
In case of problems, the Java system property hudson.security.AuthorizationMatrixProperty.checkParentPermissions can be set to false, completely disabling this fix.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.6.5"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:matrix-auth"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.6.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-21623"
],
"database_specific": {
"cwe_ids": [
"CWE-863"
],
"github_reviewed": true,
"github_reviewed_at": "2022-12-14T16:28:31Z",
"nvd_published_at": "2021-03-18T14:15:00Z",
"severity": "MODERATE"
},
"details": "Items (like jobs) can be organized hierarchically in Jenkins, using the Folders Plugin or something similar. An item is expected to be accessible only if all its ancestors are accessible as well.\n\nMatrix Authorization Strategy Plugin 2.6.5 and earlier does not correctly perform permission checks to determine whether an item should be accessible.\n\nThis allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.\\n\\nMatrix Authorization Strategy Plugin 2.6.6 requires Item/Read permission on parent items to grant Item/Read permission on an individual item.\n\nAs a workaround in older releases, do not grant permissions on individual items to users who do not have access to parent items.\n\nIn case of problems, the [Java system property](https://www.jenkins.io/doc/book/managing/system-properties/) `hudson.security.AuthorizationMatrixProperty.checkParentPermissions` can be set to false, completely disabling this fix.",
"id": "GHSA-96jw-3xw4-mq9p",
"modified": "2023-10-27T13:38:22Z",
"published": "2022-05-24T17:44:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21623"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/matrix-auth-plugin/commit/bbe358575155912b818ab3c6e8b9623f21ad3418"
},
{
"type": "PACKAGE",
"url": "https://github.com/jenkinsci/matrix-auth-plugin"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/03/18/5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Incorrect permission checks in Jenkins Matrix Authorization Strategy Plugin may allow accessing some items"
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.