Known Exploited Vulnerability
9.8
CRITICAL
CVE-2021-33045
Dahua IP Camera Authentication Bypass Vulnerabilit - [Actively Exploited]
Description

The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.

INFO

Published Date :

Sept. 15, 2021, 10:15 p.m.

Last Modified :

Aug. 22, 2024, 1 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Dahua IP cameras and related products contain an authentication bypass vulnerability when the loopback device is specified by the client during authentication.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

https://www.dahuasecurity.com/aboutUs/trustedCenter/details/582

Public PoC/Exploit Available at Github

CVE-2021-33045 has a 27 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-33045 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Dahuasecurity ipc-hum7xxx_firmware
2 Dahuasecurity ipc-hx3xxx_firmware
3 Dahuasecurity ipc-hx5xxx_firmware
4 Dahuasecurity vto-65xxx_firmware
5 Dahuasecurity vto-75x95x_firmware
6 Dahuasecurity vth-542xh_firmware
7 Dahuasecurity nvr-1xxx_firmware
8 Dahuasecurity nvr-2xxx_firmware
9 Dahuasecurity nvr-4xxx_firmware
10 Dahuasecurity nvr-5xxx_firmware
11 Dahuasecurity nvr-6xx_firmware
12 Dahuasecurity xvr-4x04_firmware
13 Dahuasecurity xvr-4x08_firmware
14 Dahuasecurity xvr-5x04_firmware
15 Dahuasecurity xvr-5x08_firmware
16 Dahuasecurity xvr-5x16_firmware
17 Dahuasecurity xvr-7x16_firmware
18 Dahuasecurity xvr-7x32_firmware
19 Dahuasecurity ipc-hum7xxx
20 Dahuasecurity ipc-hx3xxx
21 Dahuasecurity ipc-hx5xxx
22 Dahuasecurity vto-65xxx
23 Dahuasecurity vto-75x95x
24 Dahuasecurity vth-542xh
25 Dahuasecurity nvr-1xxx
26 Dahuasecurity nvr-2xxx
27 Dahuasecurity nvr-4xxx
28 Dahuasecurity nvr-5xxx
29 Dahuasecurity nvr-6xx
30 Dahuasecurity xvr-4x04
31 Dahuasecurity xvr-4x08
32 Dahuasecurity xvr-5x04
33 Dahuasecurity xvr-5x08
34 Dahuasecurity xvr-5x16
35 Dahuasecurity xvr-7x16
36 Dahuasecurity xvr-7x32
: Total Affected Vendor : 1 | Products : 36
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-33045.

URL Resource
http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2021/Oct/13 Exploit Mailing List Third Party Advisory
https://www.dahuasecurity.com/support/cybersecurity/details/957 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
nyctop/ing2

None

Python

Updated: 3 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : July 3, 2024, 2:44 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
lions2012/Penetration_Testing_POC

渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms

Assembly Python Shell PHP C++ C Go Ruby HTML Java

Updated: 3 months, 1 week ago
4 stars 0 fork 0 watcher
Born at : Feb. 7, 2024, 2:08 p.m. This repo has been linked 305 different CVEs too.
Profile Photo
bp2008/Index

Categorized lists of my projects on Github.

Updated: 5 months, 1 week ago
2 stars 0 fork 0 watcher
Born at : Jan. 26, 2024, 6:56 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
Stealzoz/steal

None

Python

Updated: 1 year ago
0 stars 0 fork 0 watcher
Born at : Oct. 18, 2023, 2:28 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
HimmelAward/Goby_POC

在公网收集的gobypoc+部分自己加的poc

Updated: 2 months, 1 week ago
96 stars 5 fork 5 watcher
Born at : July 28, 2023, 4:28 p.m. This repo has been linked 296 different CVEs too.
Profile Photo
bnhjuy77/tomde

None

Python

Updated: 1 year, 4 months ago
0 stars 2 fork 2 watcher
Born at : June 26, 2023, 3:21 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
zhanwang110/Ingram

None

Python

Updated: 1 year, 5 months ago
0 stars 0 fork 0 watcher
Born at : June 7, 2023, 7:03 a.m. This repo has been linked 4 different CVEs too.
Profile Photo
APPHIK/cam

None

Python

Updated: 1 year, 2 months ago
0 stars 0 fork 0 watcher
Born at : March 2, 2023, 3:32 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
naycha/TVT-NVR-config

None

Python C

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 10, 2023, 10:58 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
naycha/NVR-CONFIG

None

Python C

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 10, 2023, 4:54 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
naycha/TVT-config

None

Python C

Updated: 1 year, 10 months ago
1 stars 0 fork 0 watcher
Born at : Jan. 10, 2023, 4:45 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
naycha/TVT-NVR

None

Python C

Updated: 1 year, 10 months ago
0 stars 1 fork 1 watcher
Born at : Jan. 10, 2023, 2:03 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
Nxychx/TVT-NVR

None

Python C

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 10, 2023, 10:45 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
APPHIK/camz

None

Python

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 26, 2022, 3:35 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
20142995/Goby

None

Python

Updated: 2 months ago
565 stars 135 fork 135 watcher
Born at : Nov. 25, 2022, 5:20 a.m. This repo has been linked 174 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-33045 vulnerability anywhere in the article.

  • security.nl
VS publiceert overzicht van meest misbruikte kwetsbaarheden in 2023

De Amerikaanse autoriteiten hebben samen met cyberagentschappen uit Australië, Canada, Nieuw-Zeeland en het Verenigd Koninkrijk een overzicht van de meest misbruikte kwetsbaarheden in 2023 opgesteld. ... Read more

Published Date: Nov 12, 2024 (1 day, 12 hours ago)
CVE-2023-6448 CVE-2023-49103 CVE-2023-22518 CVE-2023-20273 CVE-2023-20198 CVE-2023-4966 CVE-2023-44487 CVE-2023-22515 CVE-2023-42793 CVE-2023-41064 ...+36 more CVE
  • The Register
US charges Russian GRU hackers behind WhisperGate intrusions

The US today charged five Russian military intelligence officers and one civilian for their alleged involvement with the data-wiping WhisperGate campaign conducted against Ukraine in January 2022 befo ... Read more

Published Date: Sep 05, 2024 (2 months, 1 week ago)
CVE-2022-3236 CVE-2022-26138 CVE-2022-26134 CVE-2021-33045 CVE-2021-33044
  • The Hacker News
CISA Urges Federal Agencies to Patch Versa Director Vulnerability by September

Vulnerability / Government Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has placed a security flaw impacting Versa Director to its Known Exploited Vulnerabilities (KEV) ca ... Read more

Published Date: Aug 24, 2024 (2 months, 2 weeks ago)
CVE-2024-39717 CVE-2024-7965 CVE-2022-0185 CVE-2021-33045 CVE-2021-33044 CVE-2021-31196
  • TheCyberThrone
CISA adds multiple vulnerabilities to its KEV catalog

The U.S. CISA has added 4 vulnerabilities to it’d Known Exploited Vulnerabilities Catalog (KEV) belongs to Dahua, Microsoft, and Linux products based on the mass exploitationCVE-2022-0185Linux Kernel ... Read more

Published Date: Aug 22, 2024 (2 months, 3 weeks ago)
CVE-2024-7971 CVE-2023-22527 CVE-2022-0185 CVE-2021-33045 CVE-2021-33044 CVE-2021-31196
  • security.nl
VS meldt actief misbruik van kwetsbaarheden in Dahua ip-camera's

Aanvallers maken actief misbruik van twee kwetsbaarheden in ip-camera's van fabrikant Dahua, waardoor een ongeauthenticeerde aanvaller op afstand toegang tot de apparaten kan krijgen, zo waarschuwt he ... Read more

Published Date: Aug 22, 2024 (2 months, 3 weeks ago)
CVE-2021-33045 CVE-2021-33044
  • Cybersecurity News
Microsoft, Linux, Dahua Flaws Exploited: CISA Warns

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent alert, adding four critical security vulnerabilities impacting Microsoft Exchange Server, the Linux kernel, and Da ... Read more

Published Date: Aug 21, 2024 (2 months, 3 weeks ago)
CVE-2024-7263 CVE-2024-7262 CVE-2024-22169 CVE-2024-3092 CVE-2023-27532 CVE-2022-0185 CVE-2021-33045 CVE-2021-33044 CVE-2021-31196

The following table lists the changes that have been made to the CVE-2021-33045 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Aug. 22, 2024

    Action Type Old Value New Value
    Added Vulnerability Name Dahua IP Camera Authentication Bypass Vulnerability
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Due Date 2024-09-11
    Added Date Added 2024-08-21
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Dec. 02, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html No Types Assigned http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/13 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/13 Exploit, Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 06, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 06, 2021

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/13 [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 30, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.dahuasecurity.com/support/cybersecurity/details/957 No Types Assigned https://www.dahuasecurity.com/support/cybersecurity/details/957 Vendor Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:ipc-hum7xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.820.0000000.5.r.210705 OR cpe:2.3:h:dahuasecurity:ipc-hum7xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:ipc-hx3xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.800.0000000.29.r.210630 OR cpe:2.3:h:dahuasecurity:ipc-hx3xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:ipc-hx5xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.820.0000000.5.r.210705 OR cpe:2.3:h:dahuasecurity:ipc-hx5xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:nvr-1xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000005.1.r.210709 OR cpe:2.3:h:dahuasecurity:nvr-1xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:nvr-2xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000000.1.r.210710 OR cpe:2.3:h:dahuasecurity:nvr-2xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:nvr-4xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000005.1.r.210713 OR cpe:2.3:h:dahuasecurity:nvr-4xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:nvr-5xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000000.0.r.210710 OR cpe:2.3:h:dahuasecurity:nvr-5xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:nvr-6xx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000001.1.r.210716 OR cpe:2.3:h:dahuasecurity:nvr-6xx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:vth-542xh_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.500.0000002.0.r.210715 OR cpe:2.3:h:dahuasecurity:vth-542xh:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:vto-65xxx_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.300.0000004.0.r.210715 OR cpe:2.3:h:dahuasecurity:vto-65xxx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:vto-75x95x_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.300.0000003.0.r.210714 OR cpe:2.3:h:dahuasecurity:vto-75x95x:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-4x04_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dahuasecurity:xvr-4x04:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-4x08_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000001.1.r.210709 OR cpe:2.3:h:dahuasecurity:xvr-4x08:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-4x04_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000001.1.r.210709 OR cpe:2.3:h:dahuasecurity:xvr-4x04:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-5x04_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000003.1.r.210710 OR cpe:2.3:h:dahuasecurity:xvr-5x04:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-5x08_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000003.1.r.210710 OR cpe:2.3:h:dahuasecurity:xvr-5x08:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-5x16_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000003.1.r.210710 OR cpe:2.3:h:dahuasecurity:xvr-5x16:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-7x16_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000003.1.r.210710 OR cpe:2.3:h:dahuasecurity:xvr-7x16:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:dahuasecurity:xvr-7x32_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.001.0000003.1.r.210710 OR cpe:2.3:h:dahuasecurity:xvr-7x32:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-33045 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-33045 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

93.32 }} 86.44%

score

0.99135

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: