When the master sees a burst of updates (perhaps sustained), the
slaves "I_HAVE" messages can fall behind the version we've already
sent, and the unpatched code would retransmit already sent diffs!
This can result in substantial amplification (in a local test, 3000
ops turned into 427,000 ops). Though the number of *messages* sent
was actually somewhat smaller, the ever growing message size
ultimately leads to failure.
krb5_cc_cache_match() searches all ccache collections for a ccache that
has credentials for a given principal name. This includes MEMORY
ccaches, which means it can find the same ccache as is referenced by a
GSS cred handle given to gss_store_cred(), which means that
gss_store_cred() can fail.
For now we work around this by including a private variant of
krb5_cc_cache_match() that only searches the default ccache, not all
collections. Eventually we should ensure that krb5_cc_default() also
searches all collection-type (other than MEMORY) ccaches for a default
credential, then we can go back to using krb5_cc_cache_match() (though
we'll need to make sure that MEMORY is searched last or not at all).
* Anonymous pkinit responses from the KDC where the name
type is not well-known (as issued by 7.5 KDCs and earlier)
are accepted by the client. There is no need for the client
to strictly enforce the name type.
* With historical_anon_pkinit = true, the kinit(1) client's
"--anonymous" option only performs anon pkinit, and does
not require an '@' prefix for the realm argument.
* With historical_anon_realm = true, the KDC issues anon
pkinit tickets with the legacy pre-7.0 "real" realm.
The fix involves:
- Removing HAVE_STRFTIME from config.h.w32
- Adding strftime.c to the makefile
- Defining timezone and tzname to their windows equivalent
for the compile of this module
The Microsoft compiler cannot handle multiple const modifiers
for the same type. It is also unhappy with the output pointer
parameter being declared const.
This change introduces new typedefs and cast of the dlsym() return
type to prevent warnings.
Change-Id: Ia92645efab8d2ec6745339a6f47c690782ae730a
Rename common_plugin_ftable to krb5_plugin_common_ftable.
Create lib/krb5/common_plugin.h to include the structure and typedef.
The common_plugin.h header is now included by ccache_plugin.h
along with a prototype for the required ccache_ops_plugin_load()
function.
Change-Id: I2b27d6d0f5cf0544482c3f01784fef945e12e8d8
As with the krb5plugin_an2ln_ftable_desc, krb5plugin_db_ftable_desc,
and krb5plugin_kuserok_ftable_desc the function pointers in
common_plugin_ftable_desc must be annotated with KRB5_LIB_CALL.
Change-Id: Ia7ea78743ee9eb8c7f6b648063852ca91a360d2c
Only fallback to loading the plugin function table directly if
if the initialization function is not exported. Failing a
consistency check should not permit falling back to a potentially
incompatible function table.
Change-Id: Ic753ed9a090aef6073853f7309f0f8f0f29d0aa9
even if tgt used an enctype with a different checksum.
Per [MS-SFU] 2.2.1 PA-FOR-USER the checksum is always
HMAC_MD5, and that's what Windows and MIT clients send.
In heimdal both the client and kdc use instead the
checksum of the tgt, and therefore work with each other
but windows and MIT clients fail against heimdal KDC.
Both Windows and MIT KDC would allow any keyed checksum
to be used so Heimdal client work fine against it.
Change Heimdal KDC to allow HMAC_MD5 even for non RC4
based tgt in order to support per-spec clients.
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Before committing to a PKCS#11 mechanism, check that it can provide the
required encryption or digest services by validating the flags returned by
C_GetMechanismInfo().
Commit bdcd7d2f moved the KRB5_ANON_MATCH_xxx preprocessor symbols to krb5.h,
but did not remove the originals from krb5_locl.h. This commit removes them.
The combination of 8740528b24
("Windows-compatible sentinel socket type and value") and
d497d7e4a7 ("krb5_sendto_kdc:
failover for multiple AAAA/A RRs on one domain") broke
all the send to kdc loop on Windows. rk_socket_t is
a HANDLE and rk_INVALID_SOCKET is the max value. Therefore,
no valid socket will be larger and all communications
will fail.
Change-Id: I3464f78d67b19f14050ad7a01738fb32bac99385
_krb5_principal_is_anonymous() is used outside lib/krb5 and
therefore it needs to be properly exported and its flag macros
need to be in a public header: krb5.h not krb5_locl.h.
Including krb5_locl.h from within kuser_locl.h for instance
results in build failures on Solaris.
This change renames the function and makes it part of the public
api.
Change-Id: I130d1698b10bdbd150b95e8c7d32dfc362889ce6
RFC8062 Section 7 requires verification of the PA-PKINIT-KX key excahnge
when anonymous PKINIT is used. Failure to do so can permit an active
attacker to become a man-in-the-middle.
Introduced by a1ef548600. First tagged
release Heimdal 1.4.0.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N (4.8)
Change-Id: I6cc1c0c24985936468af08693839ac6c3edda133
Signed-off-by: Jeffrey Altman <jaltman@auristor.com>
Approved-by: Jeffrey Altman <jaltman@auritor.com>
We found that the libraries behaviour when dealing with domains with
more than one entry in them is slightly suboptimal. The situation
was
kdc1 IN A 1.2.3.4
kdc1 IN AAAA ff02::1
I.e. a single hostmame with both IPv6 and IPv4 addresses. When we
run krb5_sendto_kdc on a box with only IPv4 addresses, there is a
3s delay before it fails back to the IPv4 address. This is because
the library sets the 2nd address on each hostname to be 3s in the
future and each additional one another 3s.
We change wait_response() s.t. if one is able to make progress, we
iterate over the list of hosts and move them all 1s forward. We
also modify submit_request() to skip hosts if host_connect() fails.
Add macros to give symbolic names to the flags which can be passed to
krb5_get_init_creds_opt_set_pkinit(). Reserve flags for BTMM and not validating
KDC anchors.
Add _krb5_principal_is_anonymous() private API for checking if a principal is
anonymous or not. The third argument determines whether to match authenticated
anonymous, unauthenticated anonymous, or both types of principal.
95eb83c424 ("roken: Add roken_get_username() and friends")
failed to copy the username C-String NUL terminator. As a result
a "DOMAIN\user" is returned as "userIN\user".
Change-Id: I10027e4eef18364074eecf385fa9fab1ae68dbe7
Modern OpenSSL no longer has the 2038 year restriction. Update the
certs to last 500 years rather than 10 years.
Modern crypto requirements suggest a stronger key strength than 1024.
Update to use a minimum of 4096.
Fix executable bit on gen-req.sh
We choose a semantic for the file offset during truncate operations
which is to leave the offset as is unless it is off the end of the
file in which case we pull it back in to the end. We update fd and
stdio handling to match the {,e}mem behaviour.
The rk_UNCONST macro exists because neither __DECONST nor uintptr_t
are available on all platforms (for example, AIX).
Change-Id: Ie36f0dd7a9ce454d411761ee4dbd6fc1f7c6692c
b10ad7eb57
("roken: strtoll.c negation is a no-op on unsigned integer")
broke strtoll() by failing to assign 'ret' in the success case.
Change-Id: I30535d83a2bef305140f1a6bd1ed2eeba23db9b9
strtoull() returns an unsigned long long. However, then the input
string represents a negative number the return value is supposed to
be the unsigned representation of the negative value. Before applying
the negation the value must be cast to (long long).
Change-Id: Icf9e75400ff736819b1f7e0e6fb3c8abd707a23a
strtoll() returns a signed long long not an unsigned long long.
When applying the negation for negatives the value must be cast
from unsigned to signed and then stored in a signed variable
before returning it.
Change-Id: If568afd2509d27c7bf206ca59d32ca150cb34857
