CVE-2023-3042
Description
In dotCMS, versions mentioned, a flaw in the NormalizationFilter does not strip double slashes (//) from URLs, potentially enabling bypasses for XSS and access controls. An example affected URL is https://demo.dotcms.com//html/portlet/ext/files/edit_text_inc.jsp , which should return a 404 response but didn't.
The oversight in the default invalid URL character list can be viewed at the provided GitHub link https://github.com/dotCMS/core/blob/master/dotCMS/src/main/java/com/dotcms/filters/NormalizationFilter.java#L37 .
To mitigate, users can block URLs with double slashes at firewalls or utilize dotCMS config variables.
Specifically, they can use the DOT_URI_NORMALIZATION_FORBIDDEN_STRINGS environmental variable to add // to the list of invalid strings.
Additionally, the DOT_URI_NORMALIZATION_FORBIDDEN_REGEX variable offers more detailed control, for instance, to block //html.* URLs.
Fix Version:23.06+, LTS 22.03.7+, LTS 23.01.4+
Affected products
6cpe:2.3:a:dotcms:dotcms:21.06:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:dotcms:dotcms:21.06:*:*:*:*:*:*:*
- cpe:2.3:a:dotcms:dotcms:22.03:*:*:*:*:*:*:*
- cpe:2.3:a:dotcms:dotcms:23.01:*:*:*:*:*:*:*
- cpe:2.3:a:dotcms:dotcms:5.3.8:*:*:*:*:*:*:*
- (no CPE)range: 23.06+, LTS 22.03.7+, LTS 23.01.4+
- (no CPE)range: 5.3.8
Patches
Vulnerability mechanics
References
1- www.dotcms.com/security/SI-68nvdVendor Advisory
News mentions
0No linked articles in our index yet.