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Issue:
Security scan report "SSL/TLS: Diffie-Hellman Key Exchange Insufficient DH Group Strength Vulnerability" for port 6547 used by PowerChute.
Product Lines:
PowerChute Business Edition 10.0.1, 10.0.2, 10.0.3, 10.0.4
PowerChute Network Shutdown 4.4, 4,4,1, 4,4,2, 4,4,3
Environment:
All supported OS
Cause:
Week cipher suite
Solution:
Edit the java.security file and disallow DH cipher suite less than 2048
PowerChute Business Edition on Windows OS the java.security file will be found in
C:\Program Files (x86)\APC\PowerChute Business Edition\jre\conf\security if PowerChute has been installed to the default path.
PowerChute Business Edition on Linux OS the java.security file will be found in
/opt/APC/PowerChuteBusinessEdition/jre/config/security if PowerChute has been installed to the default path.
# Example:
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048, \
# rsa_pkcs1_sha1, secp224r1
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, \
EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
Change to
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 2048, \
EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
PowerChute Network Shutdown on Windows 64 bit OS the java.security file will be found in
C:\Program Files\APC\PowerChute\jre_x64\conf\security
PowerChute Network Shutdown 4.4.1 on Linux OS the java.security file will be found in
/opt/APC/PowerChute/jre-15.0.1/config/security if PowerChute has been installed to the default path.
Add the link DH keySize < 2048,
# Example:
# jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
#
#
jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224, \
include jdk.disabled.namedCurves
Add
jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224, DH keySize < 2048,\
include jdk.disabled.namedCurves
NOTE:
Security scan report "SSL/TLS: Diffie-Hellman Key Exchange Insufficient DH Group Strength Vulnerability" for port 6547 used by PowerChute.
Product Lines:
PowerChute Business Edition 10.0.1, 10.0.2, 10.0.3, 10.0.4
PowerChute Network Shutdown 4.4, 4,4,1, 4,4,2, 4,4,3
Environment:
All supported OS
Cause:
Week cipher suite
Solution:
Edit the java.security file and disallow DH cipher suite less than 2048
PowerChute Business Edition on Windows OS the java.security file will be found in
C:\Program Files (x86)\APC\PowerChute Business Edition\jre\conf\security if PowerChute has been installed to the default path.
PowerChute Business Edition on Linux OS the java.security file will be found in
/opt/APC/PowerChuteBusinessEdition/jre/config/security if PowerChute has been installed to the default path.
# Example:
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048, \
# rsa_pkcs1_sha1, secp224r1
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, \
EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
Change to
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 2048, \
EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
PowerChute Network Shutdown on Windows 64 bit OS the java.security file will be found in
C:\Program Files\APC\PowerChute\jre_x64\conf\security
PowerChute Network Shutdown 4.4.1 on Linux OS the java.security file will be found in
/opt/APC/PowerChute/jre-15.0.1/config/security if PowerChute has been installed to the default path.
Add the link DH keySize < 2048,
# Example:
# jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
#
#
jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224, \
include jdk.disabled.namedCurves
Add
jdk.certpath.disabledAlgorithms=MD2, MD5, SHA1 jdkCA & usage TLSServer, \
RSA keySize < 1024, DSA keySize < 1024, EC keySize < 224, DH keySize < 2048,\
include jdk.disabled.namedCurves
NOTE:
- If running an older version, upgrading to the latest and following the steps above is recommended.
- This issue was resolved with the release of PowerChute Business Edition Agent 10.0.5, PowerChute Serial Shutdown version 1, and PowerChute Network Shutdown 5
Released for:Schneider Electric Vietnam
