Background exploitation KEV catalog No authentication
CVE-2020-2506

QNAP Helpdesk Improper Access Control Vulnerability

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive…

CheckOps priority index
4.8/10 Patch within 7 days
Severity7.3
Probability0.2
Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 2.0% higher than 80.8% of CVEs
CVSS 3.1 7.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:
Exploited for 1,686 days 25 Mar 2022
CISA due date 15 Apr 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep06 Oct15 Oct25 Oct03 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)25 Mar 2022
  • Exploited in EUVD (ENISA)25 Mar 2022
  • Used by ransomwareno
  • EPSS above 10 %2.0%
  • No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

The vulnerability have been reported to affect earlier versions of QTS. If exploited, this improper access control vulnerability could allow attackers to compromise the security of the software by gaining privileges, or reading sensitive information. This issue affects: QNAP Systems Inc. Helpdesk versions prior to 3.0.3.

Affected products

Helpdesk
Affected versions
  • unspecified <3.0.3
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

References

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities