CVE-2018-25120: D-Link Dns-343 Firmware command injection (CVSS 9.8)

Description

D-Link DNS-343 ShareCenter devices running firmware versions up to and including 1.05 contain a command injection vulnerability in the Mail Test functionality. The web maintenance script posts to the internal goForm endpoint '/goform/Mail_Test' and uses several form parameters directly in a call to a system email utility without proper input validation. An unauthenticated remote attacker can supply crafted form data that injects shell commands, resulting in execution as root on the device. NOTE: The DNS-343 product line has been declared end-of-life.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

D-Link Dns-343 Firmware≤ 1.0.5

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/jamesbercegay/advisories/blob/master/%5BGTSA-00128%5D%20D-Link%20DNS-343%20ShareCenter%201.05%20Remote%20Root.txtThird Party Advisory
https://qkl.seebug.org/vuldb/ssvid-97088Third Party Advisory
https://www.dlink.com/al/sq/products/dns-343-sharecenter-4-bay-network-storage-enclosureProduct
https://www.exploit-db.com/exploits/43845Exploit
https://www.vulncheck.com/advisories/dlink-dns343-sharecenter-command-injection-via-goform-mail-testThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2018-25120 being actively exploited?

CVE-2018-25120 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 9.81%.

How severe is CVE-2018-25120?

CVE-2018-25120 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 9.81% probability of exploitation.

Which products are affected by CVE-2018-25120?

Affected products include D-Link Dns-343 Firmware.

How do I fix CVE-2018-25120?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2018-25120 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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