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CVE-2019-0708

Exploited in the wild. In CISA KEV since 2021‑11‑03. A vendor fix is available.

CVSS 3.19.8CriticalEPSS percentile99th100% chance in 30 daysCISA KEVListedsince 2021-11-03, due 2022-05-03
Public exploit: 5 sourcesFixVendor fixNo build named by the sources

Published Updated Sources: CVE.org, NVD, BDU, CSAF

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

Steps

Written by AI from the record
  1. Identify every Windows and Windows Server system with Remote Desktop enabled, especially any reachable from the internet.
  2. Install the Microsoft security updates for CVE-2019-0708 using Microsoft's advisory; the findings do not provide a single fixed version number.
  3. Until updates are installed, disable Remote Desktop where it is not required and block Remote Desktop connections from the internet.
  4. Ask the suppliers of affected Siemens or other embedded systems to confirm their remediation status and update procedure.
Vendor advisory Some work to apply
Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

A remote code execution vulnerability exists in Remote Desktop Services formerly known as Terminal Services when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Remote Desktop Services Remote Code Execution Vulnerability'.

In plain language

Written by AI from the record

This is a critical Windows remote-access flaw that criminals have used in ransomware attacks, so businesses running exposed Remote Desktop should act now.

Unauthenticated remote code execution in Windows Remote Desktop Services is triggered when an attacker sends specially crafted RDP requests, stemming from a use-after-free flaw (CWE-416).

If you're affected

  • Full system takeover
  • Ransomware deployment
  • Business operations disrupted
  • Data theft risk

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS99th
Public exploit
CISA KEV
CISA KEV

Listed as exploited in the wild since 2021-11-03.

US federal agencies must remediate by 2022-05-03.

Known use in ransomware campaigns.

Apply updates per vendor instructions.
Public exploits

5 sources with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

100% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Attention now

Sustained, driven by in-the-wild reports.

Lifecycle

The patch came 128 days before any public exploit.

  1. OpenVAS check added
  2. Public exploit / PoCsource: packetstorm
  3. Patch availablerecord updated
  4. Added to CISA KEVransomware campaign
  5. Publishedweakness classified, att&ck mapped

Affected products

And 127 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 9.8 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 25 more references. See all after sign-in

In the news

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We'll flag the next CVE, public exploit or patch for SIMATIC IPC427C, not every advisory. This one: actively exploited.

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