** Reply to note from Vic <[EMAIL PROTECTED]> Wed, 10 Sep 2003 17:50:00
> as root, strace passwd voytek, see how far it ges before segfaulting..
>
> it won't work as a normal user as passwd is setuid..
hmmm, I just tried with what the passwd tool called 'bad, too short' , AND, *it
worked*.
# passwd voytek
Changing password for user voytek.
New password:
BAD PASSWORD: it is too short
Retype new password:
passwd: all authentication tokens updated successfully.
# passwd voytek
Changing password for user voytek.
New password:
(data fseek failed): Invalid argument
Segmentation fault
last 24 lines
----
read(5, "", 4096) = 0
getuid32() = 0
open("/etc/passwd", O_RDONLY) = 6
fcntl64(6, F_GETFD) = 0
fcntl64(6, F_SETFD, FD_CLOEXEC) = 0
fstat64(6, {st_mode=S_IFREG|0644, st_size=4526, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40
021000
read(6, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 4096
close(6) = 0
munmap(0x40021000, 4096) = 0
_llseek(4, 20480, [20480], SEEK_SET) = 0
read(4, "g\6\0\36h\6\0gh\6\0\255h\6\0\3i\6\0Ji\6\0\226i\6\0\362"..., 4096) = 409
6
fstat64(3, {st_mode=S_IFREG|0600, st_size=828083, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40
021000
_llseek(3, 18446744072216379392, 0xbfff8040, SEEK_SET) = -1 EINVAL (Invalid argu
ment)
write(2, "(data fseek failed): Invalid arg"..., 38(data fseek failed): Invalid a
rgument
) = 38
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
[EMAIL PROTECTED] root]#
Voytek Eymont
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