Security Bulletin: IBM Sterling File Gateway is vulnerable to multiple issues due to Bouncy Castle

Summary

IBM Sterliing File Gateway has addressed multiple security vulnerabilities in Bouncy Castle.

Vulnerability Details

CVEID:CVE-2016-1000343
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by a flaw in the DSA key pair generator. A remote attacker could exploit this vulnerability to launch further attacks.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151810 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2016-1000342
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by improper validation of ASN.1 encoding of signature in the ECDSA. A remote attacker could exploit this vulnerability to launch further attacks.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151811 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2018-1000180
**DESCRIPTION:**Bouncy Castle could provide weaker than expected security, caused by an error in the Low-level interface to RSA key pair generator. The RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. An attacker could exploit this vulnerability to launch further attacks on the system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/144810 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2016-1000340
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by a carry propagation bug in the implementation of squaring for several raw math classes. A remote attacker could exploit this vulnerability to launch further attack.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151813 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2016-1000338
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by improper validation of ASN.1 encoding of signature in the DSA. A remote attacker could exploit this vulnerability to launch further attacks.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151815 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2016-1000344
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by a flaw in the DHIES implementation. A remote attacker could exploit this vulnerability to launch further attacks on the system.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151809 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2016-1000352
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by a flaw in the ECIES implementation. A remote attacker could exploit this vulnerability to launch further attacks on the system.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151806 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2016-1000345
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by an environment where timings can be easily observed. A remote attacker could exploit this vulnerability to conduct a padding oracle attack.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151808 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2020-15522
**DESCRIPTION:**Bouncy Castle BC Java, BC C# .NET, BC-FJA, BC-FNA could allow a remote attacker to obtain sensitive information, caused by a timing issue within the EC math library. By utilize cryptographic attack techniques, an attacker could exploit this vulnerability to obtain the private key information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202188 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2017-13098
**DESCRIPTION:**Bouncy Castle could allow a remote attacker to obtain sensitive information, caused by an RSA Adaptive Chosen Ciphertext (Bleichenbacher) attack. By utilizing discrepancies in TLS error messages, an attacker could exploit this vulnerability to obtain the data in the encrypted messages once the TLS session has completed. Note: This vulnerability is also known as the ROBOT attack.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/136241 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2016-1000341
**DESCRIPTION:**Bouncy Castle JCE Provider could provide weaker than expected security, caused by a flaw in the DSA signature generation. A remote attacker could exploit this vulnerability to launch timing attacks.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151812 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2020-26939
**DESCRIPTION:**Legion of the Bouncy Castle BC and Legion of the Bouncy Castle BC-FJA could allow a remote attacker to obtain sensitive information, caused by observable differences in behavior to rrror inputs in org.bouncycastle.crypto.encodings.OAEPEncoding. By using the OAEP Decoder to send invalid ciphertext that decrypts to a short payload, a remote attacker could exploit this vulnerability to obtain sensitive information and use this information to launch further attacks against the affected system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191108 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2016-1000339
**DESCRIPTION:**Bouncy Castle JCE Provider could allow a remote attacker to obtain sensitive information, caused by a flaw in the AESEngine. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151814 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2016-1000346
**DESCRIPTION:**Bouncy Castle JCE Provider could allow a remote attacker to obtain sensitive information, caused by a flaw in the other party DH public key. A remote attacker could exploit this vulnerability to reveal details via invalid keys.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/151807 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

The version 6.0.3.7, 6.1.0.5 and 6.1.1.2 are available on Fix Central. The IIM version of 6.1.2.0 is available in IBM Passport Advantage. The container version of 6.1.2.0 is available in IBM Entitled Registry with the tag cp.icr.io/cp/ibm-sfg/sfg:6.1.2.0.

Workarounds and Mitigations

None