JVN#83655695
Multiple Dahua Technology products vulnerable to authentication bypass
Overview
Multiple products provided by Dahua Technology contain an authentication bypass vulnerability.
Products Affected
Versions with Build time before June 2021 for the following products are affected:
- IPC-HX1XXX, HX2XXX, HX3XXX, HX5(4)(3)XXX, HX5XXX, HUM7XXX, HX8XXX
- VTO75X95X, VTO65XXX
- DHI-ASI7213Y-V3-T1
- VTH542XH
- PTZ Dome Camera SD1A1, SD22, SD49, SD50, SD52C, SD6AL
- Thermal TPC-BF1241, TPC-BF2221, TPC-SD2221, TPC-BF5XXX, PC-SD8X21, TPC-PT8X21B
Description
Multiple products provided by Dahua Technology contain an authentication bypass vulnerability (CWE-287).
Impact
The product's identity verification may be bypassed if a remote attacker sends specially crafted data packets.
Solution
Update the software
Update the software to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Dahua Technology Co., Ltd. | DHCC-SA-202106-001:Security Advisory - Identity authentication bypass vulnerability found in some Dahua products |
References
JPCERT/CC Addendum
The developer published DHCC-SA-202106-001 advisory regarding CVE-2021-33044 in September 2021. However it was decided to publish JVN#83655695 advisory because the reporter found that the vulnerability existed in other product/version which had not been originally listed in DHCC-SA-202106-001.
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Mitsui Bussan Secure Directions, Inc. reported the vulnerability existed in "DHI-ASI7213Y-V3-T1" to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
|
| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2021-33044 |
| JVN iPedia |
JVNDB-2024-000007 |