NVD Vulnerability Detail
Search Exploit, PoC
CVE-2021-33044
Summary

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.

Publication Date Sept. 16, 2021, 7:15 a.m.
Registration Date Sept. 16, 2021, 10 a.m.
Last Update Nov. 21, 2024, 3:08 p.m.
CVSS3.1 : CRITICAL
スコア 9.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 低
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C) 高
完全性への影響(I) 高
可用性への影響(A) 高
CVSS2.0 : HIGH
Score 10.0
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 低
攻撃前の認証要否(Au) 不要
機密性への影響(C) 高
完全性への影響(I) 高
可用性への影響(A) 高
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:dahuasecurity:ipc-hum7xxx_firmware:*:*:*:*:*:*:*:* 2.820.0000000.5.r.210705
execution environment
1 cpe:2.3:h:dahuasecurity:ipc-hum7xxx:-:*:*:*:*:*:*:*
Configuration2 or higher or less more than less than
cpe:2.3:o:dahuasecurity:ipc-hx3xxx_firmware:*:*:*:*:*:*:*:* 2.800.0000000.29.r.210630
execution environment
1 cpe:2.3:h:dahuasecurity:ipc-hx3xxx:-:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:dahuasecurity:ipc-hx5xxx_firmware:*:*:*:*:*:*:*:* 2.820.0000000.18.r.210705
execution environment
1 cpe:2.3:h:dahuasecurity:ipc-hx5xxx:-:*:*:*:*:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd1a1_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd1a1:-:*:*:*:*:*:*:*
Configuration5 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd22_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd22:-:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd41_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd41:-:*:*:*:*:*:*:*
Configuration7 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd50_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd50:-:*:*:*:*:*:*:*
Configuration8 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd52c_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd52c:-:*:*:*:*:*:*:*
Configuration9 or higher or less more than less than
cpe:2.3:o:dahuasecurity:sd6al_firmware:*:*:*:*:*:*:*:* 2.812.0000007.0.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:sd6al:-:*:*:*:*:*:*:*
Configuration10 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-bf1241_firmware:*:*:*:*:*:*:*:* 2.630.0000000.6.r.210707
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-bf1241:-:*:*:*:*:*:*:*
Configuration11 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-bf2221_firmware:*:*:*:*:*:*:*:* 2.630.0000000.10.r.210707
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-bf2221:-:*:*:*:*:*:*:*
Configuration12 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-bf5x01_firmware:*:*:*:*:*:*:*:* 2.630.0000000.12.r.210707
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-bf5x01:-:*:*:*:*:*:*:*
Configuration13 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-pt8x21b_firmware:*:*:*:*:*:*:*:* 2.630.0000000.10.r.210701
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-pt8x21b:-:*:*:*:*:*:*:*
Configuration14 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-sd2221_firmware:*:*:*:*:*:*:*:* 2.630.0000000.7.r.210707
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-sd2221:-:*:*:*:*:*:*:*
Configuration15 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-sd8x21_firmware:*:*:*:*:*:*:*:* 2.630.0000000.9.r.210706
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-sd8x21:-:*:*:*:*:*:*:*
Configuration16 or higher or less more than less than
cpe:2.3:o:dahuasecurity:vto-65xxx_firmware:*:*:*:*:*:*:*:* 4.300.0000004.0.r.210715
execution environment
1 cpe:2.3:h:dahuasecurity:vto-65xxx:-:*:*:*:*:*:*:*
Configuration17 or higher or less more than less than
cpe:2.3:o:dahuasecurity:vto-75x95x_firmware:*:*:*:*:*:*:*:* 4.300.0000003.0.r.210714
execution environment
1 cpe:2.3:h:dahuasecurity:vto-75x95x:-:*:*:*:*:*:*:*
Configuration18 or higher or less more than less than
cpe:2.3:o:dahuasecurity:vth-542xh_firmware:*:*:*:*:*:*:*:* 4.500.0000002.0.r.210715
execution environment
1 cpe:2.3:h:dahuasecurity:vth-542xh:-:*:*:*:*:*:*:*
Configuration19 or higher or less more than less than
cpe:2.3:o:dahuasecurity:tpc-bf5x21_firmware:*:*:*:*:*:*:*:* 2.630.0000000.8.r.210630
execution environment
1 cpe:2.3:h:dahuasecurity:tpc-bf5x21:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
複数の Dahua 製品における認証に関する脆弱性
Title 複数の Dahua 製品における認証に関する脆弱性
Summary

複数の Dahua 製品には、認証に関する脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date Sept. 1, 2021, midnight
Registration Date Aug. 31, 2022, 1:47 p.m.
Last Update Aug. 31, 2022, 1:47 p.m.
Affected System
Dahua Technology Co., Ltd
IPC-HUM7XXX ファームウェア 
IPC-HX3XXX ファームウェア 
IPC-HX5XXX ファームウェア 
SD1A1 ファームウェア 
SD22 ファームウェア 
SD41 ファームウェア 
SD50 ファームウェア 
SD52C ファームウェア 
SD6AL ファームウェア 
TPC-BF1241 ファームウェア 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
No Changed Details Date of change
1 [2022年07月26日]   掲載 July 26, 2022, 11:02 a.m.