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https://issues.apache.org/jira/browse/KNOX-3417?focusedWorklogId=1035523&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1035523
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ASF GitHub Bot logged work on KNOX-3417:
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Author: ASF GitHub Bot
Created on: 13/Aug/26 08:37
Start Date: 13/Aug/26 08:37
Worklog Time Spent: 10m
Work Description: github-actions[bot] commented on PR #1348:
URL: https://github.com/apache/knox/pull/1348#issuecomment-5278012133
## Test Results
40 tests 40 ✅ 5s ⏱️
3 suites 0 💤
3 files 0 ❌
Results for commit 3c1f7543.
[test-results]:data:application/gzip;base64,H4sIAF+CfWoC/12Myw7CIBBFf6Vh7QKcosWfMcMUkoltMRRWjf8urdqHu3vOTc4kPHduFLcKTpUYM6cV2hwxcRgK6oLlSPNVyx/cx0z0Zx78LGYTHrk7CBdjiF8T87AW530IfsTWW3iXW3hfo9D3nAoIIOWvugbyjbdGIrWAViGAQukuDVmjz6iNFK83vIgTG/8AAAA=
Issue Time Tracking
-------------------
Worklog Id: (was: 1035523)
Time Spent: 20m (was: 10m)
> KnoxLdapRealm builds the LDAP search filter from the client username without
> RFC-4515 escaping
> ----------------------------------------------------------------------------------------------
>
> Key: KNOX-3417
> URL: https://issues.apache.org/jira/browse/KNOX-3417
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 2.1.0, 3.0.0
> Reporter: Tamás Hanicz
> Assignee: Tamás Hanicz
> Priority: Blocker
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Reported by n0mi1k Security
> KnoxLdapRealm.java:699-703 formats (&(objectclass=%s)(%s=%s)) with
> expandTemplate(getUserSearchAttributeTemplate(), matchedPrincipal), and :706
> expands the operator's userSearchFilter the same way; expandTemplate
> (:752-760) is a plain \{0} substitution with no encoding, principalRegex
> defaults to (.*) (:138) so matchPrincipal filters nothing, and the value
> reaches systemLdapCtx.search(searchBase, searchFilter, searchControls) at
> :716. No filter-escaping helper exists anywhere in the realm. The username
> arrives pre-authentication, via doGetAuthenticationInfo to getUserDn at :263.
> It's a filter-injection primitive rather than a demonstrated credential-less
> bypass.
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