CVE-2023-41877: geoserver Path Traversal — Fix

Description

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. A path traversal vulnerability in versions 2.23.4 and prior requires GeoServer Administrator with access to the admin console to misconfigure the Global Settings for log file location to an arbitrary location. The admin console GeoServer Logs page provides a preview of these contents. As this issue requires GeoServer administrators access, often representing a trusted party, the vulnerability has not received a patch as of time of publication. As a workaround, a system administrator responsible for running GeoServer can use the `GEOSERVER_LOG_FILE` setting to override any configuration option provided by the Global Settings page. The `GEOSERVER_LOG_LOCATION` parameter can be set as system property, environment variables, or servlet context parameters.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
geoserver	geoserver	< 2.23.4

References

Advisories & Patches

https://github.com/geoserver/geoserver/security/advisories/GHSA-8g7v-vjrc-x4g5 https://github.com/geoserver/geoserver/security/advisories/GHSA-8g7v-vjrc-x4g5

Other References

https://docs.geoserver.org/latest/en/user/configuration/globalsettings.html#log-location https://docs.geoserver.org/latest/en/user/configuration/globalsettings.html#log-location

Frequently Asked Questions

What is CVE-2023-41877? +

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. A path traversal vulnerability in versions 2.23.4 and prior requires GeoServer Administrator with access to the admin console to misconfigure the Global Settings for log file location to an arbitrary location. The admin console GeoServer Logs page provides a preview of these contents. As this issue requires GeoServer administrators access, often representing a trusted party, the vulnerability has not received a patch as of time of publication. As a workaround, a system administrator responsible for running GeoServer can use the `GEOSERVER_LOG_FILE` setting to override any configuration option provided by the Global Settings page. The `GEOSERVER_LOG_LOCATION` parameter can be set as system property, environment variables, or servlet context parameters. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2023-41877? +

CVE-2023-41877 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-41877? +

CVE-2023-41877 affects products from geoserver, specifically: geoserver. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-41877? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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