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* Make salt defaulting work for keysaltsTom Yu2014-01-067-12/+12
| | | | | | | | | | Make krb5_string_to_keysalts() default to only ":" as a key:salt separator character. Change most of its callers to pass NULL so they get the default separators. Adapted from a patch proposed by Jon Looney. ticket: 884
* Default to normal salt instead of "ignore"Tom Yu2014-01-061-1/+1
| | | | | | | | krb5_string_to_keysalts() treats an empty salt field as -1 ("ignore"), rather than as the normal salttype. Default to normal instead, so that omitting a salttype works as expected. ticket: 6042
* Mark AESNI files as not needing executable stacksGreg Hudson2014-01-032-0/+22
| | | | | | | | | | | | | | | Some Linux systems now come with facilities to mark the stack as non-executable, making it more difficult to exploit buffer overrun bugs. For this to work, object files built from assembly need a section added to note whether they require an executable stack. Patch from Dhiru Kholia with comments added. More information at: https://bugzilla.redhat.com/show_bug.cgi?id=1045699 https://wiki.gentoo.org/wiki/Hardened/GNU_stack_quickstart ticket: 7813 target_version: 1.12.1 tags: pullup
* Test bogus KDC-REQsTom Yu2013-12-312-0/+45
| | | | | | | | | | | Send encodings that are invalid KDC-REQs, but pass krb5_is_as_req() and krb5_is_tgs_req(), to make sure that the KDC recovers correctly from failures in decode_krb5_as_req() and decode_krb5_tgs_req(). Also send an encoding that isn't a valid KDC-REQ. ticket: 7811 (new) target_version: 1.12.1 tags: pullup
* Fix possible null deref in previousTom Yu2013-12-311-3/+4
| | | | | | | My rework of the do_tgs_req.c patch introduced a null deref if decode_krb5_tgs_req() failed. ticket: 7802
* Log service princ in KDC more reliablyrbasch2013-12-302-12/+18
| | | | | | | | | | | | | | | | | | | | Under some error conditions, the KDC would log "<unknown server>" for the service principal because service principal information is not yet available to the logging functions. Set the appropriate variables earlier. do_as_req.c: After unparsing the client, immediately unparse the server before searching for the client principal in the KDB. do_tgs_req.c: Save a pointer to the client-requested service principal, to make sure it gets logged if an error happens before search_sprinc() successfully completes. [tlyu@mit.edu: commit message; fix TGS to catch more error cases] ticket: 7802 target_version: 1.12.1 tags: pullup
* Fix uninitialized warning in client_init.cGreg Hudson2013-12-211-0/+3
| | | | ticket: 7800
* Allow realm in kadm5_init service namesGreg Hudson2013-12-211-48/+48
| | | | | | | | | | | | | | | | | | | | Previously, if you passed a service name with a realm part to a kadm5_init function, you would get a KRB5_PARSE_MALFORMED error because the code would internally append its own '@realm' suffix before parsing the name. Fix this as follows: Change gic_iter so instead of producing a full service name, it produces a krb5_principal which is taken from the cred it acquires. Pass the client and full service name around as principals, rather than strings, and use the gss_nt_krb5_principal name type to import them in setup_gss(). Don't append a realm to the input service name; instead, pass the input service name directly to the gic functions (which do not need a realm in the service name and will ignore the realm if one is present). For the INIT_CREDS case, parse the input service name with KRB5_PRINCIPAL_PARSE_IGNORE_REALM and then set the realm. ticket: 7800
* Simplify libkadm5 client realm initializationGreg Hudson2013-12-211-47/+4
| | | | | | | | | | | The "realm" variable in init_any is used only to fill in the realm of the service principal in gic_iter(). The service principal realm should always be the realm we looked up config parameters for, so we can supply that realm to get_init_creds() unconditionally and eliminate the case where we use the client principal realm. Also get rid of an outdated comment and an #if 0 block we will never need again, and use SNPRINTF_OVERFLOW to check the snprintf result.
* make dependGreg Hudson2013-12-202-0/+24
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* Require built-in verto for make dependGreg Hudson2013-12-201-1/+10
| | | | | A tree configured to use the system libverto will be missing $(VERTO_DEPS) in dependencies, so disallow make depend.
* Avoid keyctl purge in keyring ccache testsGreg Hudson2013-12-202-22/+28
| | | | | | | | | keyctl purge was added in keyutils 1.5 (released in March 2011). Use keyctl unlink to clean up keys instead, as it is more universal. ticket: 7810 target_version: 1.12.1 tags: pullup
* Use an extended com_err hook in klistGreg Hudson2013-12-204-23/+22
| | | | | | | | | | Add an adapted version of extended_com_err_fn from kinit to klist and use it. In do_ccache(), rely on the ccache type to set a reasonable message if krb5_cc_set_flags() or krb5_cc_get_principal() fails due to a nonexistent or unreadable ccache, and don't confuse the user with the name of the ccache operation that failed. ticket: 7809
* Set an error message when keyring get_princ failsNalin Dahyabhai2013-12-201-0/+3
| | | | | | | | | | | | When attempting to use a keyring cache that doesn't exist, set an error message when we fail to read a principal name, as we do when we return the same error code when using a file ccache. [ghudson: removed unnecessary check for d->name nullity.] ticket: 7809 target_version: 1.12.1 tags: pullup
* Test for verto_set_flags in system libvertoGreg Hudson2013-12-201-1/+1
| | | | | | | | | | libkrad relies on verto_set_flags, which was added to libverto in release 0.2.4. Make sure the system libverto has this function before choosing it over the built-in version. ticket: 7808 (new) target_version: 1.12.1 tags: pullup
* Move kdc log routines into a separate fileZhanna Tsitkov2013-12-203-198/+229
| | | | | Their previous location - kdc_util.c - seems to be overloaded with various helper functions. No code changes.
* Fix typo that broke 'make clean'Zhanna Tsitkov2013-12-201-1/+1
| | | | Missing $
* Add a test program for krb5_copy_contextGreg Hudson2013-12-182-1/+174
| | | | | | | | This test program isn't completely proof against the kind of mistakes we've made with krb5_copy_context in the past, but it at least exercises krb5_copy_context and can detect some kinds of bugs. ticket: 7807
* Fix krb5_copy_contextGreg Hudson2013-12-182-1/+16
| | | | | | | | | | | | | krb5_copy_context has been broken since 1.8 (it broke in r22456) because k5_copy_etypes crashes on null enctype lists. Subsequent additions to the context structure were not reflected in krb5_copy_context, creating double-free bugs. Make k5_copy_etypes handle null input and account for all new fields in krb5_copy_context. Reported by Arran Cudbard-Bell. ticket: 7807 (new) target_version: 1.12.1 tags: pullup
* Test SPNEGO error message in t_s4u.pyGreg Hudson2013-12-181-6/+5
| | | | | | | Now that #7045 is fixed, we can check for the correct error message from t_s4u2proxy_krb5 with --spnego. ticket: 7045
* Let SPNEGO display mechanism errorsSimo Sorce2013-12-182-8/+35
| | | | | | | | | | | | | | | To avoid potential recursion we use a thread local variable that tells us whether the ancestor was called via spnego_gss_display_name(). If we detect recursion, we assume that we returned a com_err code like ENOMEM and call error_message(); in the worst case that will result in an "Unknown error" message. [ghudson@mit.edu: Edited comments and commit message; removed an unneeded line of code.] ticket: 7045 target_version: 1.12.1 tags: pullup
* Remove unused krb5_context fieldsGreg Hudson2013-12-183-5/+0
| | | | | The vtbl and locate_fptrs fields were ostensibly related to the locate pluggable interface, but weren't actually used.
* Remove BADSYMSGreg Hudson2013-12-161-281/+0
| | | | | We haven't been using it or keeping it up to date, and there's no need to keep it checked in.
* Don't require krb5.conf without KRB5_DNS_LOOKUPGreg Hudson2013-12-162-15/+2
| | | | | | | | | | | | For a long time we have allowed krb5 contexts to be initialized in the absence of krb5.conf--but only if KRB5_DNS_LOOKUP is defined, presumably on the theory that no KDCs could be contacted without either DNS support or profile configuration. But locate plugins could provide the ability to find KDCs, and some libkrb5 operations (such as IAKERB initiation) could succeed without needing to locate KDCs. Also get rid of the profile_in_memory context flag, since we don't use it any more.
* Fix GSS krb5 acceptor acquire_cred error handlingGreg Hudson2013-12-161-1/+3
| | | | | | | | | | | | When acquiring acceptor creds with a specified name, if we fail to open a replay cache, we leak the keytab handle. If there is no specified name and we discover that there is no content in the keytab, we leak the keytab handle and return the wrong major code. Memory leak reported by Andrea Campi. ticket: 7805 target_version: 1.12.1 tags: pullup
* Fix memory leak in SPNEGO initiatorSimo Sorce2013-12-161-0/+1
| | | | | | | | | | | | If we eliminate a mechanism from the initiator list because gss_init_sec_context fails, free the memory for that mech OID before removing it from the list. [ghudson@mit.edu: clarified commit message] ticket: 7803 (new) target_version: 1.12.1 tags: pullup
* Remove unneeded check in SPNEGO initiatorGreg Hudson2013-12-161-7/+0
| | | | | | | | In init_ctx_cont, if the response token contains no fields, we set a return value but don't actually quit out of the function. We do not need this check (we will fail later on if a piece of required information isn't present), so just remove it. Reported by simo@redhat.com.
* Fix SPNEGO one-hop interop against old IISGreg Hudson2013-12-121-0/+6
| | | | | | | | | | | | | | | | IIS 6.0 and similar return a zero length reponse buffer in the last SPNEGO packet when context initiation is performed without mutual authentication. In this case the underlying Kerberos mechanism has already completed successfully on the first invocation, and SPNEGO does not expect a mech response token in the answer. If we get an empty mech response token when the mech is complete during negotiation, ignore it. [ghudson@mit.edu: small code style and commit message changes] ticket: 7797 (new) target_version: 1.12.1 tags: pullup
* Fix up tests directory ignores, deps, cleanupGreg Hudson2013-12-122-2/+12
| | | | | A few test programs didn't make it into .gitignore, OBJS, or EXTRADEPSRCS.
* Add tests for krb5_sname_to_principalGreg Hudson2013-12-124-4/+196
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* Allow ":port" suffixes in sn2princ hostnamesGreg Hudson2013-12-111-2/+37
| | | | | | | | | MSSQLSvc principal names can contain a ":port" or ":instance" trailer on the hostname part. If we see that in the hostname argument of krb5_sname_to_principal(), remove it before canonicalizing the hostname and put it back on afterwards. ticket: 7795 (new)
* Modernize sn2princ.cGreg Hudson2013-12-112-145/+115
| | | | | Refactor and edit sn2princ.c to match current coding style. No behavior changes, except to be less chatty in trace logs.
* Update man pagesTom Yu2013-12-1025-138/+323
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* make dependTom Yu2013-12-1012-61/+100
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* Avoid malloc(0) in SPNEGO get_input_tokenGreg Hudson2013-12-061-6/+9
| | | | | | | If we read a zero-length token in spnego_mech.c's get_input_token(), set the value pointer to NULL instead of calling malloc(0). ticket: 7794 (new)
* Fix S4U2Self against non-FAST KDCsGreg Hudson2013-12-061-5/+34
| | | | | | | | | | | When we added FAST TGS support in 1.11, we broke S4U2Self against KDCs which don't support FAST, because the S4U2Self padata is only present within the FAST request. For now, duplicate that padata in the outer request so that both FAST and non-FAST KDCs can see it. ticket: 7791 target_version: 1.11.5 tags: pullup
* Edit README.asn1Greg Hudson2013-12-031-34/+51
| | | | | | Add another blank line before section headers. Avoid contractions. Change some whiches to thats where it seems appropriate. Fix some missing or extra words.
* Bump libgssrpc minor versionTom Yu2013-11-271-1/+1
| | | | | | Bump minor version for the new log_badauth2 interfaces. ticket: 7770
* Correctly log IPv6 addresses in kadmindGreg Hudson2013-11-255-58/+50
| | | | | | | | | | | | | | Define client_addr() in server_stubs.c and use it consistently in that file and ipropd_svc.c to get the client address from a transport handle. In it, call getpeername() on the client socket and use inet_ntop() on the result, instead of using inet_ntoa() on the IPv4 socket address. Provide a log_badauth2 callback to GSSRPC, so that we get a transport handle instead of an IPv4 socket address, and use client_addr() within it instead of inet_ntoa(). ticket: 7770 target_version: 1.12 tags: pullup
* Add new versions of log_badauth gssrpc callbacksGreg Hudson2013-11-255-11/+59
| | | | | | | | | | libgssrpc supports two callbacks for gss_accept_sec_context failures on servers (one for AUTH_GSS and one for AUTH_GSSAPI), which are IPv4-specific. Provide an alternate version which supplies the transport handle instead of the address, so that we can get the address via the file descriptor for TCP connections. ticket: 7770
* Remove inet_ntoa() prototype from getrpcent.cBen Kaduk2013-11-251-1/+0
| | | | | | | It is not needed. In general, we shouldn't be using inet_ntoa(), anyway, as it is IPv4-specific and we have IPv6 support almost everywhere.
* Improve default ccache name API documentationGreg Hudson2013-11-221-6/+25
| | | | | | | | | | | | Document the lifetime and caching behavior of the krb5_cc_default_name() return value. Document that krb5_cc_set_default_name() may be called with NULL to purge the cached value. Correct a typo in the krb5_cc_default() summary and explicitly reference krb5_cc_default_name(). ticket: 7775 (new) target_version: 1.12 tags: pullup
* Add another kadmin ACL test for backreferencesGreg Hudson2013-11-211-0/+6
| | | | | | Add a test using backreferences which don't correspond directly to principal components, to verify that *N refers to the Nth wildcard and not the Nth component.
* Remove dangling --with-kdc-kdb-update referencesGreg Hudson2013-11-171-10/+0
| | | | | | This configure option hasn't done anything since 1.8, so don't mention it in configure --help or the documentation. The disable_last_success and disable_lockout DB options are now used to turn it off.
* Remove a warning in AES string-to-keyGreg Hudson2013-11-151-7/+4
| | | | | | | On 32-bit platforms, the code to translate an iteration count of 0 to 2^32 can trigger a compiler warning. Since we will basically never accept an iteration count that high (right now we reject anything above 2^24), just reject it out of hand.
* Set expiration time on keys and keyringsSimo Sorce2013-11-151-5/+66
| | | | | | | | | | | By setting the timeout based on the credetial's timeout we let the system automatically cleanup expired credentials. [ghudson@mit.edu: simplified code slightly] ticket: 7769 (new) target_version: 1.12 tags: pullup
* Add support to store time offsets in cc_keyringSimo Sorce2013-11-151-2/+203
| | | | | | | | | | | | | | The code follows the same model used for the memory ccache type. Time offsets are stored in each credential cache in a special key just like the principal name. Legacy session caches do not store timestamps as legacy code would fail when iterating over the new offset key. [ghudson@mit.edu: minor formatting changes; note legacy session exception in commit message] ticket: 7768 (new) target_version: 1.12 tags: pullup
* Enforce minimum PBKDF2 iteration countTom Yu2013-11-153-65/+233
| | | | | | | | | Also add a testing interface to allow weak iteration counts. (Published test vectors use weak iteration counts.) ticket: 7465 target_version: 1.12 tags: pullup
* Catch more strtol() failures when using KEYRINGsNalin Dahyabhai2013-11-121-3/+3
| | | | | | | | | | | | | When parsing what should be a UID while resolving a KEYRING ccache name, don't just depend on strtol() to set errno when the residual that we pass to it can't be parsed as a number. In addition to checking errno, pass in and check the value of an "endptr". [ghudson@mit.edu: simplified slightly] ticket: 7764 (new) target_version: 1.12 tags: pullup
* Multi-realm KDC null deref [CVE-2013-1418]Tom Yu2013-11-041-0/+3
| | | | | | | | | | | | | | | If a KDC serves multiple realms, certain requests can cause setup_server_realm() to dereference a null pointer, crashing the KDC. CVSSv2: AV:N/AC:M/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C A related but more minor vulnerability requires authentication to exploit, and is only present if a third-party KDC database module can dereference a null pointer under certain conditions. ticket: 7755 (new) target_version: 1.12 tags: pullup
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