CWE-593: Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created
The product modifies the SSL context after connection creation has begun.
How it's found
Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created is a specific, narrowly defined instance of a broader pattern. Testers confirm it with targeted code review and a proof-of-concept input that exercises the exact code path this weakness describes.
If the program modifies the SSL_CTX object after creating SSL objects from it, there is the possibility that older SSL objects created from the original context could all be affected by that change.
Consequences
- Bypass Protection Mechanism: No authentication takes place in this process, bypassing an assumed protection of encryption.
- Read Application Data: The encrypted communication between a user and a trusted host may be subject to a sniffing attack.
Mitigations
- Architecture and Design: Use a language or a library that provides a cryptography framework at a higher level of abstraction.
- Implementation: Most SSL_CTX functions have SSL counterparts that act on SSL-type objects.
- Implementation: Applications should set up an SSL_CTX completely, before creating SSL objects from it.
Where this fits in a TurboPentest engagement
TurboPentest's agentic pentest is powerful and covers a broad range of issues automatically. This particular class is best confirmed in a manual IntegSec engagement, where human pentesters apply deeper methodology and a larger context window than any automated pass.
Frequently asked questions
What is CWE-593?
The product modifies the SSL context after connection creation has begun.
How do you find Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created?
Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created is a specific, narrowly defined instance of a broader pattern. Testers confirm it with targeted code review and a proof-of-concept input that exercises the exact code path this weakness describes.
What is the impact of CWE-593?
Bypass Protection Mechanism: No authentication takes place in this process, bypassing an assumed protection of encryption. Read Application Data: The encrypted communication between a user and a trusted host may be subject to a sniffing attack.
Does TurboPentest test for Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created?
TurboPentest's agentic pentest is powerful and covers a broad range of issues automatically. This particular class is best confirmed in a manual IntegSec engagement, where human pentesters apply deeper methodology and a larger context window than any automated pass.
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