Vulnerability Monitor

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CVE-2019-16889


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 24 products from ui, from ui, from ui and 21 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2019-09-25T20:15:11.120

Last Modified

2024-11-21T04:31:16.817

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-770

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System ui er-x_firmware < 2.0.3 Yes
Hardware ui er-x - No
Operating System ui er-x-sfp_firmware < 2.0.3 Yes
Hardware ui er-x-sfp - No
Operating System ui ep-r6_firmware < 2.0.3 Yes
Hardware ui ep-r6 - No
Operating System ui erlite-3_firmware < 2.0.3 Yes
Hardware ui erlite-3 - No
Operating System ui erpoe-5_firmware < 2.0.3 Yes
Hardware ui erpoe-5 - No
Operating System ui er-8_firmware < 2.0.3 Yes
Hardware ui er-8 - No
Operating System ui erpro-8_firmware < 2.0.3 Yes
Hardware ui erpro-8 - No
Operating System ui ep-r8_firmware < 2.0.3 Yes
Hardware ui ep-r8 - No
Operating System ui er-4_firmware < 2.0.3 Yes
Hardware ui er-4 - No
Operating System ui er-6p_firmware < 2.0.3 Yes
Hardware ui er-6p - No
Operating System ui er-12_firmware < 2.0.3 Yes
Hardware ui er-12 - No
Operating System ui er-8-xg_firmware < 2.0.3 Yes
Hardware ui er-8-xg - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For ui's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.