Scott - We have had one probe that fits the description, and a couple of possibly related hits, starting December 8. Some of the traffic is _from_ 6112 rather than to it. Only one hit is both from and to 6112. We don't have any root kits left by the attacker(s). Our logs showed no SYN or RST packets to go along with the RST ACK's in December. The high destination ports did not correspond with user activity that was occurring at the time. Log field descriptions and the packets are below. Times are Greenwich Mean Time (GMT). #Fields: date time source-ip destination-ip protocol param#1 param#2 tcp-flags 2001-12-08 09:39:25 63.240.202.138 xx.xx.xx.170 Tcp 6112 65427 RST ACK Header: 45 00 00 28 e5 4e 00 00 73 06 75 45 3f f0 ca 8a xx xx xx aa Data: 17 e0 ff 93 00 00 00 00 80 3f 72 68 50 14 00 00 b8 78 00 00 2001-12-09 19:07:12 63.240.202.138 xx.xx.xx.170 Tcp 6112 65441 RST ACK Header: 45 00 00 28 2d 93 00 00 73 06 2d 01 3f f0 ca 8a xx xx xx aa Data: 17 e0 ff a1 00 00 00 00 d0 ba f8 c9 50 14 00 00 e1 8d 00 00 2001-12-31 09:36:48 209.207.216.179 xx.xx.xx.170 Tcp 6112 6112 SYN Header: 45 00 00 28 49 1d 00 00 79 06 6b 6e d1 cf d8 b3 xx xx xx aa Data: 17 e0 17 e0 24 fc 7e f8 0d 27 b8 08 50 02 e0 58 a9 60 00 00 - Jim -----Original Message----- From: Scott Fendley [mailto:scottfat_private] Sent: Thursday, January 17, 2002 6:48 PM To: Intrusions List Cc: incidentsat_private Subject: dtspcd probes toward Solaris machines -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings everyone. My apologies for the cross post, but I am doing research presently on the dtspcd vulnerability that affects Solaris (and other venders) running CDE. I have now recorded a successful intrusion on a computer on my network that appears to be related to this vulnerability. I also showed yesterday that I had a host involving a customer of Verio's that probed a handful of machines closer to my office hitting 6112/tcp. I was driving back from Dallas last night and hadn't finished deploying a new IDS machine at our border, so I missed catching any traffic details involving this exploit. I went looking back through email from various security lists, and see that there may have been probes since early December to this port. This is approximately a month after the initial advisory by Xforce. So these probes in December may be some tests of a new tool the black hats have been developing. So I have several questions for you collectively. 1) Does anyone have a snort/tcpdump trace of the exploit that I can look at and analyze? 2) Have any of the rest of you seen scans for port 6112, and can see when the scans first started for your network? 3) Have any of you caught a copy of the exploit software somehow that would be willing to let me disect? 4) Have any of you seen a DoS being generated after the computer is exploited? Thanks for all of your assistance, and if you would like a copy of my general report (obfuscation will occur) let me know. Thanks. Scott Fendley - --- Scott Fendley scottfat_private Systems/Security Analyst (501) 575-2022 University of Arkansas (501) 575-4753 -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 7.0.3 for non-commercial use <http://www.pgp.com> iQA/AwUBPEdixUz/L9XvbeTgEQLl+wCgjmLRgUgl2VN2jNnHYwWKzmodcFsAoJM0 ormnD4GB7fnyzU9ROSj6S0wh =U9rx -----END PGP SIGNATURE----- ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
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