MapServer vulnerabilities

MapServer is a system for developing web-based GIS applications. From 6.0 until 8.6.4, MapServer's OpenLayers HTML output for SERVICE=WMS&REQUEST=GetMap&FORMAT=application/openlayers reflects an attacker-controlled X-Forwarded-Host value without escaping it for a single-quoted JavaScript string. When the deployment trusts the forwarded header and does not configure a fixed ows_onlineresource or MS_ONLINERESOURCE value, embedded single quotes can escape the generated URL string. An unauthenticated attacker can craft a URL that executes arbitrary JavaScript in the MapServer site origin when opened by a victim. This issue is fixed in version 8.6.4.

In MapServer prior to 8.6.4, PostGIS filter translation in msPostGISLayerTranslateFilter() treats a filteritem as numeric when CONNECTIONTYPE POSTGIS and Integer metadata are configured, but does not verify that attacker-controlled CGI or OGC API Features input is a numeric literal. The unquoted input is concatenated into the SQL predicate, enabling SQL injection.

In MapServer before version 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if data connection fails.

A stack-based buffer overflow in MapServer before 6.0.6, 6.2.x before 6.2.4, 6.4.x before 6.4.5, and 7.0.x before 7.0.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving WFS get feature requests.