Age | Commit message (Collapse) | Author |
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temporarily_use_uid() when the target uid differs; could cause failure to
read authorized_keys under some configurations. patch by Jakub Jelen via
bz2873; ok dtucker, markus
OpenBSD-Commit-ID: 48a345f0ee90f6c465a078eb5e89566b23abd8a1
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Includes a pre-auth privsep sandbox and several pledge()
emulations. bz#2511, patch by Alex Wilson.
ok dtucker@
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Revert previous commit. We still want to call setgroups
in the case where there are zero groups to remove any that we might otherwise
inherit (as pointed out by grawity at gmail.com) and since the 2nd argument
to setgroups is always a static global it's always valid to dereference in
this case. ok deraadt@ djm@
Upstream-ID: 895b5ac560a10befc6b82afa778641315725fd01
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Revert previous commit. We still want to call setgroups in
the case where there are zero groups to remove any that we might otherwise
inherit (as pointed out by grawity at gmail.com) and since the 2nd argument
to setgroups is always a static global it's always valid to dereference in
this case. ok deraadt@ djm@
Upstream-ID: 895b5ac560a10befc6b82afa778641315725fd01
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Don't call setgroups if we have zero groups; there's no
guarantee that it won't try to deref the pointer. Based on a patch from mail
at quitesimple.org, ok djm deraadt
Upstream-ID: 2fff85e11d7a9a387ef7fddf41fbfaf566708ab1
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Replace <sys/param.h> with <limits.h> and other less
dirty headers where possible. Annotate <sys/param.h> lines with their
current reasons. Switch to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1,
LOGIN_NAME_MAX, etc. Change MIN() and MAX() to local definitions of
MINIMUM() and MAXIMUM() where sensible to avoid pulling in the pollution.
These are the files confirmed through binary verification. ok guenther,
millert, doug (helped with the verification protocol)
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from vinschen at redhat.com
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[bufaux.c bufbn.c buffer.c sftp-client.c sftp-common.c sftp-glob.c]
[uidswap.c] Include stdlib.h for free() as per the man page.
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groupaccess.c loginrec.c monitor.c monitor_wrap.c session.c sshd.c
sshlogin.c uidswap.c openbsd-compat/bsd-cygwin_util.c
openbsd-compat/getrrsetbyname-ldns.c openbsd-compat/port-aix.c
openbsd-compat/port-linux.c] Replace portable-specific instances of xfree
with the equivalent calls to free.
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openbsd-compat/bsd-setres_id.c openbsd-compat/bsd-setres_id.h
openbsd-compat/openbsd-compat.h] Move the fallback code for setting uids
and gids from uidswap.c to the compat library, which allows it to work with
the new setresuid calls in auth2-pubkey. with tim@, ok djm@
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Patch based on one from vgiffin AT apple.com; ok dtucker@
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[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c]
[auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
[auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ]
[auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c]
[buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c]
[cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
[compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c]
[groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
[kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c]
[key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c]
[monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c]
[readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h]
[serverloop.c session.c session.h sftp-client.c sftp-common.c]
[sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c]
[ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c]
[ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c]
[sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c]
[uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h]
[loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h]
almost entirely get rid of the culture of ".h files that include .h files"
ok djm, sort of ok stevesk
makes the pain stop in one easy step
NB. portable commit contains everything *except* removing includes.h, as
that will take a fair bit more work as we move headers that are required
for portability workarounds to defines.h. (also, this step wasn't "easy")
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[atomicio.c auth.c dh.c authfile.c buffer.c clientloop.c kex.c]
[groupaccess.c gss-genr.c kexgexs.c misc.c monitor.c monitor_mm.c]
[packet.c scp.c serverloop.c session.c sftp-client.c sftp-common.c]
[sftp-server.c sftp.c ssh-add.c ssh-agent.c ssh-keygen.c sshlogin.c]
[uidswap.c xmalloc.c]
move #include <sys/param.h> out of includes.h
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[atomicio.c auth-options.c auth-passwd.c auth-rhosts.c auth-rsa.c]
[auth.c auth1.c auth2-chall.c auth2-hostbased.c auth2-passwd.c auth2.c]
[authfd.c authfile.c bufaux.c bufbn.c buffer.c canohost.c channels.c]
[cipher-3des1.c cipher-bf1.c cipher-ctr.c cipher.c clientloop.c]
[compat.c deattack.c dh.c dns.c gss-genr.c gss-serv.c hostfile.c]
[includes.h kex.c kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c moduli.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c rsa.c]
[progressmeter.c readconf.c readpass.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c sftp.c]
[ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c sshconnect2.c]
[sshd.c sshlogin.c sshpty.c ttymodes.c uidswap.c xmalloc.c]
move #include <string.h> out of includes.h
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[authfd.c authfile.c channels.c cleanup.c clientloop.c groupaccess.c]
[includes.h log.c misc.c msg.c packet.c progressmeter.c readconf.c]
[readpass.c scp.c servconf.c sftp-client.c sftp-server.c sftp.c]
[ssh-add.c ssh-agent.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh.c]
[sshconnect.c sshlogin.c sshpty.c uidswap.c]
move #include <unistd.h> out of includes.h
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[scp.c auth.c monitor.c serverloop.c sftp-server.c sshpty.c readpass.c
sshd.c monitor_wrap.c monitor_fdpass.c ssh-agent.c ttymodes.c atomicio.c
includes.h session.c sshlogin.c monitor_mm.c packet.c sshconnect2.c
sftp-client.c nchan.c clientloop.c sftp.c misc.c canohost.c channels.c
ssh-keygen.c progressmeter.c uidswap.c msg.c readconf.c sshconnect.c]
move #include <errno.h> out of includes.h; ok markus@
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[auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c]
[auth-rhosts.c auth-rsa.c auth.c auth.h auth2-hostbased.c]
[auth2-pubkey.c auth2.c includes.h misc.c misc.h monitor.c]
[monitor_wrap.c monitor_wrap.h scp.c serverloop.c session.c]
[session.h sftp-common.c ssh-add.c ssh-keygen.c ssh-keysign.c]
[ssh.c sshconnect.c sshconnect.h sshd.c sshpty.c sshpty.h uidswap.c]
[uidswap.h]
move #include <pwd.h> out of includes.h; ok markus@
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[groupaccess.c groupaccess.h includes.h session.c sftp-common.c sshpty.c]
move #include <grp.h> out of includes.h
(portable needed uidswap.c too)
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[readpass.c sshconnect.c sshconnect2.c uidswap.c uidswap.h]
do not set the gid, noted by solar; ok djm
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[readpass.c sshconnect.c sshconnect.h sshconnect2.c uidswap.c]
replace remaining setuid() calls with permanently_set_uid() and
check seteuid() return values; report Marcus Meissner; ok dtucker djm
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[uidswap.c]
use setres[ug]id() to permanently revoke privileges; ok deraadt@
(ID Sync only - portable already uses setres[ug]id() whenever possible)
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[atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c]
[auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c]
[auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
[auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c]
[buffer.c canohost.c channels.c cipher-3des1.c cipher-bf1.c]
[cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c compress.c]
[deattack.c dh.c dispatch.c fatal.c groupaccess.c hostfile.c kex.c]
[kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c]
[readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c]
[sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c]
Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that
Theo nuked - our scripts to sync -portable need them in the files
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[buffer.c channels.c deattack.c misc.c scp.c session.c sftp-client.c]
[sftp-server.c ssh-agent.c ssh-rsa.c xmalloc.c xmalloc.h auth-pam.c]
[uidswap.c]
change OpenSSH's xrealloc() function from being xrealloc(p, new_size)
to xrealloc(p, new_nmemb, new_itemsize).
realloc is particularly prone to integer overflows because it is
almost always allocating "n * size" bytes, so this is a far safer
API; ok deraadt@
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[atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c]
[auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c]
[auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c]
[auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c]
[canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.c]
[cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
[compress.c deattack.c dh.c dispatch.c dns.c entropy.c fatal.c]
[groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c]
[kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c]
[loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c]
[nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c]
[scard.c scp.c servconf.c serverloop.c session.c sftp-client.c]
[sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c]
[ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
[ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c]
[openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c]
[openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c]
[openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c]
[openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c]
RCSID() can die
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vinschen at redhat.com.
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on Cygwin. Cygwin parts from vinschen at redhat com; ok djm@
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using sysconf() if available Based on patches from
holger AT van-lengerich.de and openssh_bugzilla AT hockin.org
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setres[ug]id() present but not implemented (eg some Linux/glibc
combinations).
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[everything]
unexpand and delete whitespace at EOL; ok markus@
(done locally and RCS IDs synced)
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OS does not support permanently dropping privileges. Patch from
vinschen at redhat.com.
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"SetUID demystified" - Hao Chen, David Wagner and Drew Dean
Proceedings of USENIX Security Symposium 2002
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[sshd.c uidswap.c]
seteuid and setegid; markus ok
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[uidswap.c]
little more debugging; ok markus@
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platforms without the setgroups() requirement, you MUST define
SETGROUPS_NOOP in the configure.ac) Based on patch by vinschen@redhat.com
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[uidswap.c]
use correct function name in fatal()
[See the patch above, I saw it before apply the next patch. <sigh>]
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[uidswap.c]
format spec change/casts and some KNF; ok markus@
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[auth1.c auth2.c auth2-chall.c auth-bsdauth.c auth.c authfile.c auth.h]
[auth-krb4.c auth-rhosts.c auth-skey.c bufaux.c canohost.c channels.c]
[cipher.c clientloop.c compat.c compress.c deattack.c key.c log.c mac.c]
[match.c misc.c nchan.c packet.c readconf.c rijndael.c rijndael.h scard.c]
[servconf.c servconf.h serverloop.c session.c sftp.c sftp-client.c]
[sftp-glob.c sftp-int.c sftp-server.c ssh-add.c ssh-agent.c ssh.c]
[sshconnect1.c sshconnect2.c sshconnect.c sshd.8 sshd.c sshd_config]
[ssh-keygen.c sshlogin.c sshpty.c sshtty.c ttymodes.c uidswap.c]
basic KNF done while i was looking for something else
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[uidswap.c]
undo last change; does not work for sshd
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[uidswap.c]
permanently_set_uid is a noop if user is not privilegued;
fixes bug on solaris; from sbi@uchicago.edu
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<vinschen@redhat.com>
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patch based on 2.5.2 version by djm.
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