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Web aplikāciju drošība

  Juris Pūce
  juris.puce@checkit.lv
  CISA ...
Kas tad ir web aplikācijas

• Plašāka pāreja uz web aplikācijām
  – Bankas, sociālie tīkli, portāli, utml
• WEB 2.0
  – AJAX
  – Drošība vs. Lietojamība
Klasiskie drošības mehānismi

• Perimetra drošības nodrošināšana
• Jauninājumu instalēšana

• Web aplikāciju gadījumā ar to nav gana...
Kā tad nodrošināt drošību

• Tehnoloģiskā drošība
  –   Operētājsistēma
  –   Ar lapas apkalpošanu saistītie servisi
  –   Tīkla infrastruktūra
  –   Web aplikācijas saturs
• Procedūras un procesi
  – Izstrāde ar fokusu uz drošību
  – Uzraudzība un kontrole
       • Auditācijas pieraksti
       • Pro-aktīva drošības testēšana
Tehnoloģiju daļa web lapu
drošībā
• SQL injection (un citi injection tipi
   – Piekļuve datu bāžu saturam
• XSS Cross Site Scripting
   – Pārvirzīšana, sesiju nolaupīšana, lapas izskats
     (jebkura JavaScript funkcija)
• Mainīgo minēšana
   – ?pass=xas2312
• Paroļu minēšana
• Cookie izmantošana

• Un citi...
Procesu daļa drošības
nodrošināšanā
• Izstrādes daļa
   – Secure Development
   – Testēšana pēc ieviešanas


• Pastāvīga uzraudzība un kontrole
   – Auditācijas pieraksti
• Proaktīvās darbības
   – Drošības pārbaudes
      • Vulnerability management process
• Drošības incidentu izmeklēšana
   – Informācijas ievākšana
Kādi ir rezultāti

•   Defacement
•   Datu iegūšana
•   Šantāža
•   Izklaide...
Rezultāti
Kādi ir “top” gadījumi
• Latvija
   – Valsts Policijas mājas lapa = 2007.07
   – Iekšlietu ministrijas mājas lapa = 2007.10
   – Kopumā katru mēnesi ~20 lapām
• Pasaule
   – RIAA (ASV ierakstu industrija) 2008.04
      • SQL injection
   – Twitter kontu laušana (t.sk. Baraka Obamas konts)
     2009.02
      • Brute force
   – Orkut, Myspace un citu sociālo tīklu problēmas ar
     XSS (2007/2008/2009)
      • Worm tipa aplikācijas
OWASP
• Open Web Application Security Project
• Projekti
   – PROTECT
       •   Development guide
       •   Sammy
       •   Enterprise Security
       •   Ruby on Rails
   – DETECT
       •   WebScarab
       •   LiveCD
       •   Code Review & Testing
       •   Top Ten (Qualys)
   – LIFE CYCLE
       • WebGoat
       • Legal

• Latvian chapter
Kur gūt papildus informāciju

•   Google
•   OWASP.org
•   http://ha.ckers.org
•   www.zone-h.org

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Web Aplikāciju Drošība

  • 1. Web aplikāciju drošība Juris Pūce juris.puce@checkit.lv CISA ...
  • 2. Kas tad ir web aplikācijas • Plašāka pāreja uz web aplikācijām – Bankas, sociālie tīkli, portāli, utml • WEB 2.0 – AJAX – Drošība vs. Lietojamība
  • 3. Klasiskie drošības mehānismi • Perimetra drošības nodrošināšana • Jauninājumu instalēšana • Web aplikāciju gadījumā ar to nav gana...
  • 4. Kā tad nodrošināt drošību • Tehnoloģiskā drošība – Operētājsistēma – Ar lapas apkalpošanu saistītie servisi – Tīkla infrastruktūra – Web aplikācijas saturs • Procedūras un procesi – Izstrāde ar fokusu uz drošību – Uzraudzība un kontrole • Auditācijas pieraksti • Pro-aktīva drošības testēšana
  • 5. Tehnoloģiju daļa web lapu drošībā • SQL injection (un citi injection tipi – Piekļuve datu bāžu saturam • XSS Cross Site Scripting – Pārvirzīšana, sesiju nolaupīšana, lapas izskats (jebkura JavaScript funkcija) • Mainīgo minēšana – ?pass=xas2312 • Paroļu minēšana • Cookie izmantošana • Un citi...
  • 6. Procesu daļa drošības nodrošināšanā • Izstrādes daļa – Secure Development – Testēšana pēc ieviešanas • Pastāvīga uzraudzība un kontrole – Auditācijas pieraksti • Proaktīvās darbības – Drošības pārbaudes • Vulnerability management process • Drošības incidentu izmeklēšana – Informācijas ievākšana
  • 7. Kādi ir rezultāti • Defacement • Datu iegūšana • Šantāža • Izklaide...
  • 9. Kādi ir “top” gadījumi • Latvija – Valsts Policijas mājas lapa = 2007.07 – Iekšlietu ministrijas mājas lapa = 2007.10 – Kopumā katru mēnesi ~20 lapām • Pasaule – RIAA (ASV ierakstu industrija) 2008.04 • SQL injection – Twitter kontu laušana (t.sk. Baraka Obamas konts) 2009.02 • Brute force – Orkut, Myspace un citu sociālo tīklu problēmas ar XSS (2007/2008/2009) • Worm tipa aplikācijas
  • 10. OWASP • Open Web Application Security Project • Projekti – PROTECT • Development guide • Sammy • Enterprise Security • Ruby on Rails – DETECT • WebScarab • LiveCD • Code Review & Testing • Top Ten (Qualys) – LIFE CYCLE • WebGoat • Legal • Latvian chapter
  • 11. Kur gūt papildus informāciju • Google • OWASP.org • http://ha.ckers.org • www.zone-h.org