CVE-2024-34707: Nautobot's BANNER_* configuration can be used to inject arbitrary HTML content into Nautobot pages
A Nautobot user with admin privileges can modify the BANNER_TOP, BANNER_BOTTOM, and BANNER_LOGIN configuration settings via the /admin/constance/config/ endpoint. Normally these settings are used to provide custom banner text at the top and bottom of all Nautobot web pages (or specifically on the login page in the case of BANNER_LOGIN) but it was reported that an admin user can make use of these settings to inject arbitrary HTML, potentially exposing Nautobot users to security issues such as cross-site scripting (stored XSS).
References
- github.com/advisories/GHSA-r2hr-4v48-fjv3
- github.com/nautobot/nautobot
- github.com/nautobot/nautobot/commit/4f0a66bd6307bfe0e0acb899233e0d4ad516f51c
- github.com/nautobot/nautobot/commit/f640aedc69c848d3d1be57f0300fc40033ff6423
- github.com/nautobot/nautobot/pull/5697
- github.com/nautobot/nautobot/pull/5698
- github.com/nautobot/nautobot/security/advisories/GHSA-r2hr-4v48-fjv3
- nvd.nist.gov/vuln/detail/CVE-2024-34707
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