Patchfirst
CVE-2019-20500 KEVPublic exploit High · 7.8 EPSS 96.7%

D-Link DWL-2600AP Access Point Command Injection Vulnerability

D-Link · DWL-2600AP Access Point

Summary

A command injection flaw exists in the Save Configuration functionality of the web interface of the D-Link DWL-2600AP Access Point, affecting version 4.2.0.15 Rev A devices. An attacker who holds valid credentials can inject shell metacharacters into the configBackup or downloadServerip parameter of the admin.cgi?action=config_save request to run arbitrary OS commands, and the attack requires only authenticated access to the device's web interface, with no user interaction.

Official description · NVD

D-Link DWL-2600AP 4.2.0.15 Rev A devices have an authenticated OS command injection vulnerability via the Save Configuration functionality in the Web interface, using shell metacharacters in the admin.cgi?action=config_save configBackup or downloadServerip parameter.

Breakdown
68.4 / 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 3 years after disclosure. Public exploit code (Exploit-DB) was available 10 months before disclosure.

  1. Public exploit codeExploit-DB10 mo before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+3 yrs
  4. Added to CISA KEVEU database agrees+3 yrs

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

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

web interface reachable remotely, authenticated injection

authenticated OS command injection vulnerability via the Save Configuration functionality in the Web interface
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

shell metacharacters execute arbitrary OS commands

using shell metacharacters in the admin.cgi?action=config_save configBackup
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-2019-20500 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

3 links, grouped by NVD tag (2 duplicates merged)
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