ghsa-ccr8-4xr7-cgj3
Vulnerability from github
Jenkins Script Security Plugin provides a sandbox feature that allows low privileged users to define scripts, including Pipelines, that are generally safe to execute. Calls to code defined inside a sandboxed script are intercepted, and various allowlists are checked to determine whether the call is to be allowed.
In Script Security Plugin 1.75 and 1.66.5, any calls from outside a sandboxed script to code defined inside a sandboxed script were always allowed. As sandboxed scripts can communicate their results through script return values and similar mechanisms, this could result in code defined inside of a sandboxed script to be called without sandbox protection.
This vulnerability allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
Script Security Plugin 1.75 and 1.66.5 will prevent code defined inside a sandbox from being invoked outside a sandboxed script.
In rare cases, invocations of sandboxed scripts may begin failing if the script return value or script binding include code defined in the sandbox and is further processed by the calling code. To resolve this issue, the affected values need to be converted inside the sandboxed script to a known safe type, such as String.
For compatibility with this change, the following plugins should be upgraded to the versions specified: - Email Extension Plugin should be updated to version 2.77 or newer. - Warnings Next Generation Plugin should be updated to version 8.4.3 or newer. - Warnings Plugin should be updated to version 5.0.2 or newer.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:script-security"
},
"ranges": [
{
"events": [
{
"introduced": "1.67"
},
{
"fixed": "1.75"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:script-security"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.66.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-2279"
],
"database_specific": {
"cwe_ids": [
"CWE-693"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-23T23:19:56Z",
"nvd_published_at": "2020-09-23T14:15:00Z",
"severity": "CRITICAL"
},
"details": "Jenkins Script Security Plugin provides a sandbox feature that allows low privileged users to define scripts, including Pipelines, that are generally safe to execute. Calls to code defined inside a sandboxed script are intercepted, and various allowlists are checked to determine whether the call is to be allowed.\n\nIn Script Security Plugin 1.75 and 1.66.5, any calls from outside a sandboxed script to code defined inside a sandboxed script were always allowed. As sandboxed scripts can communicate their results through script return values and similar mechanisms, this could result in code defined inside of a sandboxed script to be called without sandbox protection.\n\nThis vulnerability allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.\n\nScript Security Plugin 1.75 and 1.66.5 will prevent code defined inside a sandbox from being invoked outside a sandboxed script.\n\nIn rare cases, invocations of sandboxed scripts may begin failing if the script return value or script binding include code defined in the sandbox and is further processed by the calling code. To resolve this issue, the affected values need to be converted inside the sandboxed script to a known safe type, such as `String`.\n\nFor compatibility with this change, the following plugins should be upgraded to the versions specified:\n- [Email Extension Plugin](https://plugins.jenkins.io/email-ext) should be updated to version 2.77 or newer.\n- [Warnings Next Generation Plugin](https://plugins.jenkins.io/warnings-ng) should be updated to version 8.4.3 or newer.\n- [Warnings Plugin](https://plugins.jenkins.io/warnings) should be updated to version 5.0.2 or newer.",
"id": "GHSA-ccr8-4xr7-cgj3",
"modified": "2023-10-27T11:26:24Z",
"published": "2022-05-24T17:29:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2279"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/script-security-plugin/commit/79d1e9207c5c359ca779b92f0a290e18c5e2387b"
},
{
"type": "WEB",
"url": "https://github.com/CVEProject/cvelist/blob/16860a328d970faa6e4350b0fa446f64a52e52ca/2020/2xxx/CVE-2020-2279.json"
},
{
"type": "PACKAGE",
"url": "https://github.com/jenkinsci/script-security-plugin"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2020-09-23/#SECURITY-2020"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2020/09/23/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Sandbox bypass vulnerability in Jenkins Script Security Plugin"
}
- 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.