CWE-593 Detail

CWE-593

Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created
Draft
2006-12-15
00h00 +00:00
2023-06-29
00h00 +00:00
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Name: Authentication Bypass: OpenSSL CTX Object Modified after SSL Objects are Created

The product modifies the SSL context after connection creation has begun.

CWE Description

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.

General Informations

Modes Of Introduction

Implementation : REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Common Consequences

Scope Impact Likelihood
Access ControlBypass Protection Mechanism

Note: No authentication takes place in this process, bypassing an assumed protection of encryption.
ConfidentialityRead Application Data

Note: The encrypted communication between a user and a trusted host may be subject to a sniffing attack.

Potential Mitigations

Phases : Architecture and Design
Use a language or a library that provides a cryptography framework at a higher level of abstraction.
Phases : Implementation
Most SSL_CTX functions have SSL counterparts that act on SSL-type objects.
Phases : Implementation
Applications should set up an SSL_CTX completely, before creating SSL objects from it.

Vulnerability Mapping Notes

Justification : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Comment : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Related Attack Patterns

CAPEC-ID Attack Pattern Name
CAPEC-94 Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.

Submission

Name Organization Date Date release Version
CWE Community 2006-12-15 +00:00 2006-12-15 +00:00 Draft 5

Modifications

Name Organization Date Comment
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Common_Consequences, Relationships, Other_Notes
CWE Content Team MITRE 2009-07-27 +00:00 updated Description, Other_Notes, Potential_Mitigations
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2011-06-27 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Relationships
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships
CWE Content Team MITRE 2017-05-03 +00:00 updated Potential_Mitigations, Relationships
CWE Content Team MITRE 2017-11-08 +00:00 updated Demonstrative_Examples, Modes_of_Introduction, Relationships
CWE Content Team MITRE 2020-02-24 +00:00 updated Common_Consequences, Relationships
CWE Content Team MITRE 2022-10-13 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships, Time_of_Introduction
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes