This site is the archived OWASP Foundation Wiki and is no longer accepting Account Requests.
To view the new OWASP Foundation website, please visit https://owasp.org
Difference between revisions of "Germany/Projekte/Top 10-2013-A6-Verlust der Vertraulichkeit sensibler Daten"
(Import vom engl. Wiki, mit language=de) |
m (moved Germany/Projekte/Top 10-2013-A6-Sensitive Data Exposure to Germany/Projekte/Top 10-2013-A6-Verlust der Vertraulichkeit sensibler Daten: Umbenennung von 'Sensitive Data Exposure' in 'Verlust der Vertraulichkeit sensibler Daten') |
||
(One intermediate revision by the same user not shown) | |||
Line 14: | Line 14: | ||
}} | }} | ||
− | {{Top_10_2010:SummaryTableHeaderBeginTemplate|year=2013|language=de}} | + | {{Top_10_2010:SummaryTableHeaderBeginTemplate|type=images|year=2013|language=de}} |
{{Top_10:SummaryTableTemplate|exploitability=3|prevalence=3|detectability=2|impact=1|year=2013|language=de}} | {{Top_10:SummaryTableTemplate|exploitability=3|prevalence=3|detectability=2|impact=1|year=2013|language=de}} | ||
{{Top_10_2010:SummaryTableHeaderEndTemplate|year=2013}} | {{Top_10_2010:SummaryTableHeaderEndTemplate|year=2013}} |
Latest revision as of 08:51, 4 July 2013
NOTE: THIS IS NOT THE LATEST VERSION. Please visit the OWASP Top 10 project page to find the latest edition.
← A5-Sicherheitsrelevante Fehlkonfiguration | A7-Fehlerhafte Autorisierung auf Anwendungsebene → |
Anwendungs- spezifisch |
Ausnutzbarkeit SCHWIERIG |
Verbreitung SELTEN |
Auffindbarkeit DURCHSCHNITTLICH |
Auswirkung SCHWERWIEGEND |
Application / Business Specific |
Consider who can gain access to your sensitive data and any backups of that data. This includes the data at rest, in transit, and even in your customers’ browsers. Include both external and internal threats. |
Attackers typically don’t break crypto directly. They break something else, such as steal keys, do man-in-the-middle attacks, or steal clear text data off the server, while in transit, or from the user’s browser. |
The most common flaw is simply not encrypting sensitive data. When crypto is employed, weak key generation and management, and weak algorithm usage is common, particularly weak password hashing techniques. Browser weaknesses are very common and easy to detect, but hard to exploit on a large scale. External attackers have difficulty detecting server side flaws due to limited access and they are also usually hard to exploit. |
Failure frequently compromises all data that should have been protected. Typically, this information includes sensitive data such as health records, credentials, personal data, credit cards, etc. |
Consider the business value of the lost data and impact to your reputation. What is your legal liability if this data is exposed? Also consider the damage to your reputation. |
Bin ich durch 'Verlust der Vertraulichkeit sensibler Daten' verwundbar?
The first thing you have to determine is which data is sensitive enough to require extra protection. For example, passwords, credit card numbers, health records, and personal information should be protected. For all such data:
And more … For a more complete set of problems to avoid, see ASVS areas Crypto (V7), Data Prot. (V9), and SSL (V10). |
Wie kann ich 'Verlust der Vertraulichkeit sensibler Daten' verhindern?
|
Mögliche Angriffsszenarien
Scenario #1: An application encrypts credit card numbers in a database using automatic database encryption. However, this means it also decrypts this data automatically when retrieved, allowing an SQL injection flaw to retrieve credit card numbers in clear text. The system should have encrypted the credit card numbers using a public key, and only allowed back-end applications to decrypt them with the private key. Scenario #2: A site simply doesn’t use SSL for all authenticated pages. Attacker simply monitors network traffic (like an open wireless network), and steals the user’s session cookie. Attacker then replays this cookie and hijacks the user’s session, accessing the user’s private data. Scenario #3: The password database uses unsalted hashes to store everyone’s passwords. A file upload flaw allows an attacker to retrieve the password file. All of the unsalted hashes can be exposed with a rainbow table of precalculated hashes. |
Referenzen
OWASP For a more complete set of requirements, see ASVS req’ts on Cryptography (V7), Data Protection (V9) and Communications Security (V10)
Andere
|
← A5-Sicherheitsrelevante Fehlkonfiguration | A7-Fehlerhafte Autorisierung auf Anwendungsebene → |
![CC-by-sa-3 0-88x31.png](/images/6/64/CC-by-sa-3_0-88x31.png)