Patchfirst
CVE-2018-6530 KEVRansomwarePublic exploit Critical · 9.8 EPSS 96.7%

D-Link Multiple Routers OS Command Injection Vulnerability

D-Link · Multiple Routers

Summary

The D-Link DIR-880L, DIR-868L, DIR-865L, and DIR-860L routers contain an OS command injection flaw in the soap.cgi component (soapcgi_main in cgibin), where the service parameter is not properly neutralised before use in OS commands. A remote attacker with network access can execute arbitrary OS commands by sending a crafted request containing the service parameter, requiring no authentication or user interaction.

Official description · NVD

OS command injection vulnerability in soap.cgi (soapcgi_main in cgibin) in D-Link DIR-880L DIR-880L_REVA_FIRMWARE_PATCH_1.08B04 and previous versions, DIR-868L DIR868LA1_FW112b04 and previous versions, DIR-65L DIR-865L_REVA_FIRMWARE_PATCH_1.08.B01 and previous versions, and DIR-860L DIR860LA1_FW110b04 and previous versions allows remote attackers to execute arbitrary OS commands via the service parameter.

Breakdown
79.8 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited 5 years after disclosure.

  1. Disclosedday 0
  2. First seen exploitedVulnCheck KEV evidence+5 yrs
  3. Added to CISA KEVknown ransomware use; EU database agrees+5 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

See the family tree

A fix was bypassed or incomplete once over 10 months.

Same bug familyLinked by evidence that a fix failed or the same code was patched again. Oldest first.

  1. This CVECVE-2018-6530D-Link Multiple Routers OS Command Injection6 Mar 2018KEV
  2. incomplete fixHigh

    Why these are linked:

    • Stated in the CVE textNOTE: this issue exists because of an incomplete fix for CVE-2018-6530.
    CVE-2018-20114On D-Link DIR-818LW Rev.A 2.05.B03 and DIR-860L Rev.B 2.03.B03…2 Jan 2019

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Exploit Public-Facing Application T1190 Medium
AI mapping from the description · how it is exploited

Remote unauthenticated request to exposed web CGI endpoint

allows remote attackers to execute arbitrary OS commands via the service parameter
From the official description (NVD) Original (opens in a new tab) ↗

ExecutionTA0002

Command and Scripting Interpreter T1059 Medium
AI mapping from the description · primary impact

Injected OS commands execute on the device

OS command injection vulnerability in soap.cgi
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 244 general rules for its techniques

Rules for this CVE

0 that reference CVE-2018-6530 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

6 links, grouped by NVD tag (5 duplicates merged)
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