ghsa-59x6-g4jr-4hxc
Vulnerability from github
GeoServer 2, in some configurations, allows remote attackers to execute arbitrary code via java.lang.Runtime.getRuntime().exec in wps:LiteralData within a wps:Execute request, as exploited in the wild in June 2023.
RCE in Jiffle
The Jiffle map algebra language, provided by jai-ext, allows efficiently execute map algebra over large images. A vulnerability CVE-2022-24816 has been recently found in Jiffle, that allows a Code Injection to be performed by properly crafting a Jiffle invocation.
In the case of GeoServer, the injection can be performed from a remote request.
Assessment
GeoTools includes the Jiffle language as part of the gt-process-raster-<version> module, applications using it should check whether it’s possible to provide a Jiffle script from remote, and if so, upgrade or remove the functionality (see also the GeoServer mitigation, below).
The issue is of particular interest for GeoServer users, as GeoServer embeds Jiffle in the base WAR package. Jiffle is available as a OGC function, for usage in SLD rendering transformations.
This allows for a Remote Code Execution in properly crafted OGC requests, as well as from the administration console, when editing SLD files.
Mitigations
In case you cannot upgrade at once, then the following mitigation is strongly recommended:
- Stop GeoServer
- Open the war file, get into
WEB-INF/liband remove thejanino-<version>.jar - Restart GeoServer.
This effectively removes the Jiffle ability to compile scripts in Java code, from any of the potential attack vectors (Janino is the library used to turn the Java code generated from the Jiffle script, into executable bytecode).
GeoServer should still work properly after the removal, but any attempt to use Jiffle will result in an exception.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wms"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.18.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wfs"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.18.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wms"
},
"ranges": [
{
"events": [
{
"introduced": "2.19.0"
},
{
"fixed": "2.19.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wfs"
},
"ranges": [
{
"events": [
{
"introduced": "2.19.0"
},
{
"fixed": "2.19.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wms"
},
"ranges": [
{
"events": [
{
"introduced": "2.20.0"
},
{
"fixed": "2.20.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wfs"
},
"ranges": [
{
"events": [
{
"introduced": "2.20.0"
},
{
"fixed": "2.20.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wps"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.18.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wps"
},
"ranges": [
{
"events": [
{
"introduced": "2.19.0"
},
{
"fixed": "2.19.6"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver:gs-wps"
},
"ranges": [
{
"events": [
{
"introduced": "2.20.0"
},
{
"fixed": "2.20.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-35042"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": true,
"github_reviewed_at": "2023-09-19T20:27:27Z",
"nvd_published_at": "2023-06-12T15:15:09Z",
"severity": "CRITICAL"
},
"details": "GeoServer 2, in some configurations, allows remote attackers to execute arbitrary code via `java.lang.Runtime.getRuntime().exec` in `wps:LiteralData` within a `wps:Execute` request, as exploited in the wild in June 2023.\n\n## RCE in Jiffle\n\nThe Jiffle map algebra language, provided by jai-ext, allows efficiently execute map algebra over large images. A vulnerability [CVE-2022-24816](https://nvd.nist.gov/vuln/detail/CVE-2022-24816) has been recently found in Jiffle, that allows a Code Injection to be performed by properly crafting a Jiffle invocation.\n\nIn the case of GeoServer, the injection can be performed from a remote request.\n\n## Assessment\n\nGeoTools includes the Jiffle language as part of the `gt-process-raster-\u003cversion\u003e` module, applications using it should check whether it\u2019s possible to provide a Jiffle script from remote, and if so, upgrade or remove the functionality (see also the GeoServer mitigation, below).\n\nThe issue is of particular interest for GeoServer users, as GeoServer embeds Jiffle in the base WAR package. Jiffle is available as a OGC function, for usage in SLD rendering transformations.\n\nThis allows for a Remote Code Execution in properly crafted OGC requests, as well as from the administration console, when editing SLD files.\n\n## Mitigations\n\nIn case you cannot upgrade at once, then the following mitigation is strongly recommended:\n\n1. Stop GeoServer\n2. Open the war file, get into `WEB-INF/lib` and remove the `janino-\u003cversion\u003e.jar`\n3. Restart GeoServer.\n\nThis effectively removes the Jiffle ability to compile scripts in Java code, from any of the potential attack vectors (Janino is the library used to turn the Java code generated from the Jiffle script, into executable bytecode).\n\nGeoServer should still work properly after the removal, but any attempt to use Jiffle will result in an exception.",
"id": "GHSA-59x6-g4jr-4hxc",
"modified": "2023-09-20T14:06:24Z",
"published": "2023-06-12T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35042"
},
{
"type": "WEB",
"url": "https://docs.geoserver.org/stable/en/user/services/wps/operations.html#execute"
},
{
"type": "WEB",
"url": "https://geoserver.org/vulnerability/2022/04/11/geoserver-2-jiffle-jndi-rce.html"
},
{
"type": "PACKAGE",
"url": "https://github.com/geoserver/geoserver"
},
{
"type": "WEB",
"url": "https://isc.sans.edu/diary/29936"
},
{
"type": "WEB",
"url": "https://osgeo-org.atlassian.net/browse/GEOS-10458"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "GeoServer RCE due to improper control of generation of code in jai-ext`Jiffle` map algebra language"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.