What is the CVSS score of CVE-2019-16889?

CVE-2019-16889 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 5.1%.

Is there a public PoC exploit available for CVE-2019-16889?

Yes, a public proof-of-concept exploit is available for CVE-2019-16889. Prioritise patching immediately. EPSS: 5.1%.

Is there a patch available for CVE-2019-16889?

Yes, a patch is available for CVE-2019-16889. Update the affected software to the latest version immediately.

Er X Firmware CVE-2019-16889

HIGH

Allocation of Resources Without Limits or Throttling (CWE-770)

2019-09-25 cve@mitre.org

Denial Of Service Ubiquiti Er X Firmware Er X Sfp Firmware Ep R6 Firmware Erlite 3 Firmware Erpoe 5 Firmware Er 8 Firmware Erpro 8 Firmware Ep R8 Firmware Er 4 Firmware Er 6P Firmware Er 12 Firmware Er 8 Xg Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Sep 25, 2019 - 20:15 nvd

HIGH 7.5

DescriptionNVD

Ubiquiti EdgeMAX devices before 2.0.3 allow remote attackers to cause a denial of service (disk consumption) because *.cache files in /var/run/beaker/container_file/ are created when providing a valid length payload of 249 characters or fewer to the beaker.session.id cookie in a GET header. The attacker can use a long series of unique session IDs.

AnalysisAI

Ubiquiti EdgeMAX devices before 2.0.3 allow remote attackers to cause a denial of service (disk consumption) because *.cache files in /var/run/beaker/container_file/ are created when providing a. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. Ubiquiti EdgeMAX devices before 2.0.3 allow remote attackers to cause a denial of service (disk consumption) because *.cache files in /var/run/beaker/container_file/ are created when providing a valid length payload of 249 characters or fewer to the beaker.session.id cookie in a GET header. The attacker can use a long series of unique session IDs. Affected products include: Ui Er-X Firmware, Ui Er-X-Sfp Firmware, Ui Ep-R6 Firmware, Ui Erlite-3 Firmware, Ui Erpoe-5 Firmware. Version information: before 2.0.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.