JAVA.INSEC.DTP : Deprecated Transfer Protocol (Java)

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CodeSonar^® 27.0w

AdaCore Inc

Java

JAVA.INSEC.DTP : Deprecated Transfer Protocol (Java)

Summary

An unsafe or deprecated transfer protocol is used inside a transfer method.

The SSL2 and SSL protocols are considered unsafe.

Some or all TLS versions are considered unsafe, depending on the setting of JAVA_ANALYSIS_STRICT_MODE:

JAVA_ANALYSIS_STRICT_MODE=No	TLS v1, and TLS v1.1 are considered unsafe.
JAVA_ANALYSIS_STRICT_MODE=Yes	All TLS versions are considered unsafe.

Properties

Class Name

Deprecated Transfer Protocol (Java)

Significance

security

Mnemonic

JAVA.INSEC.DTP

Categories

CWE	CWE:757	Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
OWASP-2017	OWASP-2017:A6	Security Misconfiguration
	OWASP-2017:A9	Using Components with Known Vulnerabilities
OWASP-2021	OWASP-2021:A2	Cryptographic Failures
	OWASP-2021:A5	Security Misconfiguration
	OWASP-2021:A6	Vulnerable and Outdated Components
OWASP-2025	OWASP-2025:A02	Security Misconfiguration
	OWASP-2025:A03	Software Supply Chain Failures
	OWASP-2025:A04	Cryptographic Failures

Availability

Available for Java only.

Enabling

Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Deprecated Transfer Protocol (Java)"

Example

import java.security.NoSuchAlgorithmException;
import javax.net.ssl.SSLContext;

public class SslContextConfig {

    // Requesting a deprecated protocol such as "SSLv3" produces an SSLContext
    // that is vulnerable to well-known attacks.
    SSLContext useDeprecatedProtocol() throws NoSuchAlgorithmException {
        return SSLContext.getInstance("SSLv3");    // 'Deprecated Transfer Protocol (Java)' warning issued here
    }

    // Obtaining the default SSLContext lets the platform negotiate a current,
    // secure protocol instead of pinning a specific version string.
    SSLContext usePlatformDefault() throws NoSuchAlgorithmException {
        return SSLContext.getDefault();  // ok: platform default negotiates a current protocol
    }
}

To reproduce this example, analyze it with the following configuration:

WARNING_FILTER += allow class="Deprecated Transfer Protocol (Java)"
JAVA_ANALYSIS_ENTRY_POINTS_MODE = ALL_METHODS

Resolution

Parameterize it in a configuration file.

Use safer protocols.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

To report problems with this documentation, please visit https://support.adacore.com/csm.