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Mallory
HighCISA KEVExploited in the wildPublic exploit

OS command injection in Digiever DS-2105 Pro time_tzsetup.cgi (ntp parameter)

IdentifiersCVE-2023-52163CWE-78

Digiever DS-2105 Pro NVR firmware 3.1.0.71-11 contains an OS command injection flaw in the time_tzsetup.cgi CGI endpoint. The issue is triggered by a crafted value supplied to the 'ntp' parameter, which is incorporated into OS command execution without sufficient sanitization, enabling an attacker to execute arbitrary operating system commands with the privileges of the web service. Public reporting also notes the product is end-of-life and no longer supported by the maintainer.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Arbitrary OS command execution on the NVR (remote code execution in the context of the device’s web service), which can result in full device compromise, unauthorized configuration changes, data exposure (including surveillance/video system impact), and potential use of the device as a foothold/pivot for further network activity. The vulnerability has been reported as actively exploited in the wild, including for botnet deployment (e.g., Mirai/ShadowV2).

Mitigation

If you can’t patch tonight, do this now.

If replacement/patching is not immediately possible: remove/avoid internet exposure of the NVR management interface; restrict access via network segmentation/VLANs and ACLs to trusted admin networks only; enforce strong, non-default credentials (and rotate any potentially exposed credentials); monitor for exploitation attempts against time_tzsetup.cgi and anomalous outbound connections consistent with botnet activity; consider placing the device behind a VPN/jump host for administrative access.

Remediation

Patch, then assume compromise.

Apply a vendor-provided fixed firmware if available for the specific device/firmware lineage. Where the device is end-of-life and no patch is available, the effective remediation is to replace/discontinue the affected DS-2105 Pro units with supported hardware/firmware that receives security updates.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
DigieverDs-2105 Pro Firmwareoperating_system
DigieverDs-2105 Pro+ Firmwareoperating_system

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Threat actor evidence

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Associated malware

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Detection signatures2

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity32

Community discussion across Reddit, Mastodon, and other social sources.