Unrated

Hardcoded Administrator Credentials in WD My Cloud nas_sharing.cgi

IdentifiersCVE-2017-18182CWE-798

CVE-2017-18182 is a hardcoded credential vulnerability in Western Digital My Cloud personal cloud storage devices prior to firmware 2.30.172. The issue is present in the nas_sharing.cgi CGI component, which contains a built-in administrative account credential. Because the credential is embedded in the binary rather than provisioned securely at deployment time, an attacker who knows or recovers it can authenticate as an administrator without possessing legitimate user-assigned credentials. This results in a complete authorization bypass on affected devices.

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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.

Successful exploitation allows an attacker to bypass authentication and obtain administrative access to the affected WD My Cloud device. Administrative access can enable full control over device management functions and can serve as a stepping stone to broader compromise of the appliance and the data it manages.

Mitigation

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

Apply the vendor firmware update that removes the hardcoded administrative credential. No separate temporary workaround is documented. Where immediate patching is not possible, reduce exposure by restricting management access to trusted networks and limiting untrusted reachability to the device administration interface, though such measures do not eliminate the underlying flaw.

Remediation

Patch, then assume compromise.

Upgrade affected Western Digital My Cloud devices to firmware version 2.30.172 or later, or to the latest vendor-provided firmware available for the specific model. Affected product lines include My Cloud Gen 2, My Cloud PR2100, My Cloud PR4100, My Cloud EX2 Ultra, My Cloud EX2, My Cloud EX4, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, and My Cloud DL4100.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

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

Western Digital CorporationMy Cloudapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

1 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

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 activity