From console: 2003-07-07 15:59:40.973 ScreenSaverEngine[6247] Exception raised during posting of notification. Ignored. exception: *** -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0) corresponding crashlog: Date/Time: 2003-07-07 15:59:38 -0500 OS Version: 10.2.6 (Build 6L60) Host: liquid Command: ScreenSaverEngine PID: 6244 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_INVALID_ADDRESS (0x0001) at 0x822ae308 Thread 0 Crashed: #0 0x9068ba64 in objc_msgSend #1 0x97df221c in NSPopAutoreleasePool #2 0x930b1dd0 in -[NSApplication run] #3 0x00004678 in 0x4678 #4 0x00004328 in 0x4328 #5 0x000041a8 in 0x41a8 Thread 1: #0 0x90073c28 in mach_msg_trap #1 0x90005f70 in mach_msg #2 0xc0007758 in __ape_internal #3 0xc0001160 in __ape_agent #4 0x90020d28 in _pthread_body Thread 2: #0 0x90073c28 in mach_msg_trap #1 0x90005f70 in mach_msg #2 0x901489f0 in __CFRunLoopRun #3 0x90180f58 in CFRunLoopRunSpecific #4 0x90148240 in CFRunLoopRun #5 0x022000cc in thread_main #6 0x90020d28 in _pthread_body Thread 3: #0 0x90014d08 in syscall_thread_switch #1 0x97e03ef4 in +[NSThread sleepUntilDate:] #2 0x93081cac in -[NSUIHeartBeat _heartBeatThread:] #3 0x97e2cc50 in forkThreadForFunction #4 0x90020d28 in _pthread_body PPC Thread State: srr0: 0x9068ba64 srr1: 0x0000f030 vrsave: 0x00000000 xer: 0x20000000 lr: 0x97df221c ctr: 0x9068ba3c mq: 0x00000000 r0: 0x97df221c r1: 0xbffff440 r2: 0x24000280 r3: 0x025a2d80 r4: 0x906ca0d0 r5: 0x00000000 r6: 0x00000000 r7: 0x02236f50 r8: 0x0004d010 r9: 0x02266288 r10: 0x0004d290 r11: 0x85858584 r12: 0x80048080 r13: 0x00000000 r14: 0x00000000 r15: 0x00000000 r16: 0x00000000 r17: 0x00000000 r18: 0x00000000 r19: 0x00000000 r20: 0x00000000 r21: 0x00000000 r22: 0x00000000 r23: 0x00000000 r24: 0x00000000 r25: 0x00000000 r26: 0xbffffdf4 r27: 0x00000031 r28: 0x00000005 r29: 0x025a2d80 r30: 0x00081460 r31: 0x97df20c0 -----Original Message----- From: Delfim Machado [mailto:bipbipat_private] Sent: Friday, July 04, 2003 9:23 AM To: bugtraqat_private; full-disclosureat_private; product-securityat_private; vulnwatchat_private; vulnat_private; bugsat_private Cc: phiberat_private Subject: [VulnWatch] MacOSX - crash screensaver locked with password and get thedesktop back Hi all, three days ago i discovered a security issue, with the last MacOSX. there is a way to crash the screensaver locked with password and gain the desktop. how? - you ask. i don't know the exact amount of characters, only that if you leave a key pressed for 5 minutes or more and then hit the enter key, you crash the screensaver and gain access to the desktop. you can mess the desktop and all around it (network, mail, docs, anything you can imagine). i think that this is a huge secure hole and it must be corrected. i hope that this is good for everyone who cares about "how to secure your desktop". solution? wait until someone at the apple make a patch and realise it... here is the mail that i've sent to apple security people, they didn't replied :( -- BEGIN APPLE MESSAGE -- To: product-securityat_private Subject: [BUG] forgot your screensaver password ?? Hackit anyway Hi all (tested machines at the bottom of this message) sorry about the subject, but there is a problem with the auth prompt when you have the screensaver running. i do not know the exact amount of characters to make the auth prompt blow up, but here is what i do: with the screensaver runnig, leave something at the top of the keyboard and leave it there for 5 or more minutes, then hit ENTER. The screensaver dies and you have your desktop open to anyone. desktop open, network open, hackers go away :) i'll wait for an answer until 3 of Jully and then send this problem to full-disclosureat_private and bugtraqat_private if you need more time, please tell me that i'll wait until the patch be ready to deploy. OS tested: didn't get a mac not updated ... (uname -a) (Powerbook) Darwin roadrunner 6.6 Darwin Kernel Version 6.6: Thu May 1 21:48:54 PDT 2003; root:xnu/xnu-344.34.obj~1/RELEASE_PPC Power Macintosh powerpc (iMac) Darwin MacLulo 6.6 Darwin Kernel Version 6.6: Thu May 1 21:48:54 PDT 2003; root:xnu/xnu-344.34.obj~1/RELEASE_PPC Power Macintosh powerpc (Powerbook) Darwin Proenca-Powerbook17 6.6 Darwin Kernel Version 6.6: Thu May 1 21:48:54 PDT 2003; root:xnu/xnu-344.34.obj~1/RELEASE_PPC Power Macintosh powerpc PS: MacOSX r0x, keep on the good way! -- END APPLE MESSAGE -- Cheers -- Delfim Machado - dbcmat_private XPTO:: Portuguese OpenSource Community - http://lab.xpto.org _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
This archive was generated by hypermail 2b30 : Mon Jul 07 2003 - 15:47:07 PDT