huntrule

MODX Manager Path Traversal Attempt via tvs.php class_key (CVE-2010-5278)

Alerts on HTTP requests to MODx tvs.php with traversal-based class_key payload indicative of LFI attempts.

FreeReviewedSigma · Critical · v5
Category
webserver
Author
Subhash Popuri (@pbssubhash) (SigmaHQ), DRL 1.1
Published
2021-08-25
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Initial Access

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule identifies web requests targeting MODX Revolution’s manager/controllers/default/resource/tvs.php with a class_key parameter containing directory traversal sequences that attempt to read sensitive files (e.g., windows/win.ini) and include a null byte. Attackers use traversal payloads to escape intended directories and retrieve arbitrary files, potentially exposing credentials, configuration, or other sensitive data. Telemetry required is HTTP query-string visibility that includes the tvs.php request path and the class_key value.

Reporting behind it

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MODX Manager Path Traversal Attempt via tvs.php class_key (CVE-2010-5278)
Pivot detection · T1190 · 9 related

Changelog

v5
  1. v5
    Candidate ingested via manual entry.2026-07-31
  2. v4
    Candidate ingested via manual entry.2026-07-31
  3. v3
    Candidate ingested via manual entry.2026-07-31
  4. v2
    Candidate ingested via manual entry.2026-07-31
  5. v1
    No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.