Skip to content
Noroxi
CVE-2017-9316· NVD / CVE Program· CNA dahua

Firmware upgrade authentication bypass vulnerability was found in Dahua IPC-HDW4300S and some IP products.

Firmware upgrade authentication bypass vulnerability was found in Dahua IPC-HDW4300S and some IP products. The vulnerability was caused by internal Debug function. This particular function was used for problem analysis and performance tuning during product development phase. It allowed the device to receive only specific data (one direction, no transmit) and therefore it was not involved in any instance of collecting user privacy data or allowing remote code execution.

MediumCVSS 6.5 · v3.0—No exploit No fix recorded
Published
Nov 27, 2017
Updated
Jun 16, 2026
EPSS
1.9% · 79th percentile
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.9%

Affected systems

VendorProduct
dahuasecuritynvr11hs firmware
dahuasecuritynvr11hs
dahuasecurityipc-hdw4300s firmware
dahuasecurityipc-hdw4300s
dahuasecurityipc-hfw4x00 firmware
dahuasecurityipc-hfw4x00
dahuasecurityipc-hdw4x00 firmware
dahuasecurityipc-hdw4x00
dahuasecurityipc-hdbw4x00 firmware
dahuasecurityipc-hdbw4x00
dahuasecurityipc-hf5x00 firmware
dahuasecurityipc-hf5x00

and 6 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dahuasecurity ipc-hdbw4x00 firmware2.400.0000.3.r.20150312
  • dahuasecurity ipc-hdbw4x00 firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hdbw5x00 firmware2.400.0000.3.r.20150312
  • dahuasecurity ipc-hdbw5x00 firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hdw4300s firmware2.240.0009.0.r.20131015
  • dahuasecurity ipc-hdw4300s firmware2.400.0000.0.r.20131231
  • dahuasecurity ipc-hdw4300s firmware2.420.0000.0.r.20140419
  • dahuasecurity ipc-hdw4300s firmware2.420.0002.0.r.20140621
  • dahuasecurity ipc-hdw4300s firmware2.420.0002.0.r.20140724
  • dahuasecurity ipc-hdw4300s firmware2.420.0005.0.r.20141205
  • dahuasecurity ipc-hdw4300s firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hdw4300s firmware2.420.0007.0.r.20150409
  • dahuasecurity ipc-hdw4300s firmware2.420.0008.0.r.20150710
  • dahuasecurity ipc-hdw4x00 firmware2.400.0000.3.r.20150312
  • dahuasecurity ipc-hdw4x00 firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hdw5x00 firmware2.400.0000.3.r.20150312
  • dahuasecurity ipc-hdw5x00 firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hf5x00 firmware2.400.0000.3.r.20150312
  • dahuasecurity ipc-hf5x00 firmware2.420.0006.0.r.20150311
  • dahuasecurity ipc-hfw4x00 firmware2.400.0000.3.r.20150312

Versions reported by the vendor

Affected version ranges reported by the assigning authority (dahua). Independent of NVD's CPE analysis and usually ahead of it.

  • Dahua Technologies IPC-HDW4300S\NVR11HS\IPC-HFW4X00\IPC-HDW4X00\IPC-HDBW4X00\IPC-HF5X00\IPC-HFW5X00\IPC-HDW5X00\IPC-HDBW5X00\NVR11HS

    • References are as :http://www.dahuasecurity.com/annoucementsingle/security-advisory--high-risk-vulnerability-found-in-dahua-ipc-hdw4300s-and-some-ip-products_14731_231.htmlaffected

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records