Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

illuminate/cookie

              master @ ca2b768
            

Fixes

CVEs

CRITICAL

Peak severity

Highlights

Insecure Deserialization: 7 prior fixes. Scrutinize any change in this area.

Middleware/EncryptCookies.php: most-fixed (15 issues). Treat as high-risk during review.

8 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Insecure Deserialization: Automatic PHP deserialization of decrypted cookies (including session IDs and XSRF-TOKENs) allows remote attackers to execute arbitrary code or inject malicious objects via forged cookie payloads. Disabling the serialization flag during decryption is necessary to mitigate this recurring flaw.

Cryptographic Issues: Weak unkeyed SHA-1 hash verification and missing cookie name binding allowed cookie substitution and forging attacks. Transitioning to keyed HMAC-SHA1 signatures and embedding name prefixes within the encrypted payload are critical to guarantee cipher integrity.

Denial of Service: Type confusion (such as passing array-typed or non-string cookies) or unhandled exceptions thrown during decryption operations can crash the HTTP request, exposing the application to Denial of Service vectors.