CVE-2021-33044

Dahua IP Camera Firmware: IP Camera Authentication Bypass

As of , CVE-2021-33044 in Dahua IP Camera Firmware is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 21 August 2024
US federal deadline
11 September 202421 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.25 on 21 August 2024EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: www.dahuasecurity.comLinks below, from CISA's entry.

What CISA says to do

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

CISA's required action

What the flaw is

Dahua IP cameras and related products contain an authentication bypass vulnerability when the NetKeyboard type argument is specified by the client during authentication.

CISA's 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.

The CVE record's description, from dahua

CVE published
15 September 2021
Assigned by
dahua
CVSS
9.8 Critical (CVSS 3.1, from CISA-ADP)
CWE-287
Improper Authentication
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

IP Camera Firmware: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2021-33045IP Camera Authentication BypassDahua IP Camera FirmwarePatch this weekEPSS 0.990.99

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