cziegeler opened a new pull request, #28:
URL: https://github.com/apache/sling-org-apache-sling-auth-core/pull/28
Hardens the redirect handling in both `DefaultAuthenticationFeedbackHandler`
and `DefaultJakartaAuthenticationFeedbackHandler` against open-redirect attacks
and log-injection vulnerabilities.
**Changes:**
- Restrict `sendRedirect` to relative paths only (must start with `/` and
not contain `://`); falls back to `/` for any external or protocol-relative URL
- Add `sanitizeForLog()` helper that escapes CR (`\r`) and LF (`\n`)
characters to prevent log injection
- Apply `sanitizeForLog()` to all redirect-target values before passing them
to logger calls
- Switch error log concatenation to SLF4J parameterized logging (`{}`
placeholder) for consistency and safety
Co-authored-by: Maia <maia@noreply>
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