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GeoServer OGC Filter SQL Injection Vulnerabilities

Critical severity GitHub Reviewed Published Feb 21, 2023 in geoserver/geoserver • Updated Feb 22, 2023

Package

maven org.geoserver.community:gs-jdbcconfig (Maven)

Affected versions

< 2.21.4
>= 2.22.0, < 2.22.2

Patched versions

2.21.4
2.22.2

Description

Impact

GeoServer includes support for the OGC Filter expression language and the OGC Common Query Language (CQL) as part of the Web Feature Service (WFS) and Web Map Service (WMS) protocols. CQL is also supported through the Web Coverage Service (WCS) protocol for ImageMosaic coverages.

SQL Injection Vulnerabilities have been found with:

  • PropertyIsLike filter, when used with a String field and any database DataStore, or with a PostGIS DataStore with encode functions enabled
  • strEndsWith function, when used with a PostGIS DataStore with encode functions enabled
  • strStartsWith function, when used with a PostGIS DataStore with encode functions enabled
  • FeatureId filter, when used with any database table having a String primary key column and when prepared statements are disabled
  • jsonArrayContains function, when used with a String or JSON field and with a PostGIS or Oracle DataStore (GeoServer 2.22.0+ only)
  • DWithin filter, when used with an Oracle DataStore

Patches

  • GeoSever 2.21.4
  • GeoServer 2.22.2
  • GeoServer 2.20.7
  • GeoServer 2.19.7
  • GeoServer 2.18.7

Workarounds

  1. Disabling the PostGIS Datastore encode functions setting to mitigate strEndsWith, strStartsWith vulnerabilities (Like filters have no mitigation, if there is a string field in the feature type published).
  2. Enabling the PostGIS DataStore preparedStatements setting to mitigate the FeatureId vulnerability.

References

References

@jodygarnett jodygarnett published to geoserver/geoserver Feb 21, 2023
Published by the National Vulnerability Database Feb 21, 2023
Published to the GitHub Advisory Database Feb 22, 2023
Reviewed Feb 22, 2023
Last updated Feb 22, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(100th percentile)

Weaknesses

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. Learn more on MITRE.

CVE ID

CVE-2023-25157

GHSA ID

GHSA-7g5f-wrx8-5ccf

Source code

Credits

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