Application Security
CWE-215 Sensitive Information in Debugging Code
Debug output that prints passwords is fine on a laptop and a leak in production. CWE-215, how to find leftover debug code, and how to remove it.
Oct 18, 20262 min read
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CWE-214 Secrets on the Command Line: Visible in ps
Passwords passed as arguments or environment variables can be read by other users on the same host. CWE-214 explained with safer patterns.
Oct 18, 20263 min read
Application Security
CWE-213: Sensitive Data Exposed by Incompatible Policies
A feature that works as designed can still expose data someone else considers sensitive. CWE-213 and the phpinfo example.
Oct 18, 20262 min read
Application Security
CWE-212: Removing Sensitive Data Before You Share a File
EXIF GPS data, reviewer comments and leftover heap memory all travel with the resource. CWE-212 explained, with a metadata stripping example.
Oct 18, 20263 min read
Application Security
CWE-211 Externally-Generated Error Messages: Path Disclosure
Interpreter and framework errors can print file paths and query text to users. CWE-211 and how to turn off display of those errors in production.
Oct 18, 20262 min read
Application Security
CWE-210 Self-Generated Error Messages With Sensitive Data
When your own diagnostic message includes secrets, you caused the leak. CWE-210 explained and how to keep debug detail out of production.
Oct 18, 20262 min read
Application Security
CWE-209 Error Messages With Sensitive Information: Fix Guide
Stack traces, file paths and passwords in error messages help attackers aim. CWE-209 explained, with code to show users less and log more.
Oct 18, 20264 min read
Application Security
CWE-208 Observable Timing Discrepancy: Constant-Time Comparison
Small differences in how long a check takes can reveal passwords, MACs and keys. CWE-208 explained with vulnerable and fixed comparison code.
Oct 18, 20264 min read
Application Security
CWE-207: When Behavior Fingerprints Your Product
Attackers fingerprint products by how they differ from equivalents. CWE-207 matters most where being identifiable is unacceptable, such as honeypots.
Oct 18, 20262 min read
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