IBM Support

IT24050: SECURE+ DOES NOT WORK ON TLS1.2 WITH GCM CIPHER SUITES

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APAR status

  • Closed as program error.

Error description

  • IBM Sterling B2B Integrator V5.2.6.3_3:
    
    Secure+ does not work with these ciphers suites:
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384.
    

Local fix

  • STRRTC - 564470
    GM / GM
    Circumvention: No workaround available
    

Problem summary

  • Users Affected:
    IBM Sterling B2B Integrator V5.2 Users
    
    Problem Description:
    Secure+ connections fail when ciphers suite
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 or
    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 are configured.
    
    Connections fail with:
    JTXT="com.sterlingcommerce.cd.cdjava.CdSecurePException:
    MSGID=JSKT003E,RC=8,FDBK=1,CLMTHNAME=CdCommMgr.doHandshake,
    CDTXT="The Secure+ TLS handshake operation failed.
    Check the error text for TLS error information and follow
    diagnostic and reporting procedures.",
    JTXT="javax.net.ssl.SSLHandshakeException: Received fatal alert:
    handshake_failure"
    indicating no common ciphers were configured between the SSL
    client and server.
    
    Platforms Affected:
    Unix/Linux
    Windows
    iSeries
    

Problem conclusion

  • Resolution Summary:
    
    A code fix is provided.
    
    The CDSA no longer configures ciphers from a default set. Since
    the TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 and
    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ciphers are not members of
    this default cipher list, they were not enabled.
    
    The CDSA now correctly enables only ciphers from the session's
    configuration rather erroneously from a default list.
    
    Delivered In:
    5020602_6
    5020603_6
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT24050

  • Reported component name

    STR B2B INTEGRA

  • Reported component ID

    5725D0600

  • Reported release

    526

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-02-13

  • Closed date

    2018-05-23

  • Last modified date

    2018-07-12

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    STR B2B INTEGRA

  • Fixed component ID

    5725D0600

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS3JSW","label":"IBM Sterling B2B Integrator"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.2.6","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}}]

Document Information

Modified date:
12 July 2018