When creating or writing files, make sure that the file is not a
sysmlink. Such files created by libkmipclient are typically stored inside
the zkey repository and the owner and mode of them are changed to.
allow read/write for the owner user and the 'zkeyadm' group. It
would allow a symlink-following attack if the file being created are
symlinks. Make sure to open such files with the 'O_NOFOLLOW' flag.
Assisted-by: IBM Bob:2.0.0
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Gcc 12 produces a -Wmaybe-uninitialized warning that the content
of the tmp buffer may be uninitialized. This is a false positive.
Silence the warning by using calloc instead of malloc to ensure
that the allocated buffer is initialized.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
KMIP values of type BYTE-STRING are represented as hex values when XML
or JSON encoding is used. Do not drop any leading zero bytes, if the
value has them.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
libkmipclient is a shared library that provides an KMIP client to
communicate with an KMIP server. KMIP stands for Key Management
Interoperability Protocol, and is an extensible communication protocol
that defines message formats for the manipulation of cryptographic
keys on a key management server.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Ingo Franzki