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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.09% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- ui/er-x firmware · ui/er-x-sfp firmware · ui/ep-r6 firmware · ui/erlite-3 firmware · ui/erpoe-5 firmware · ui/er-8 firmware · ui/erpro-8 firmware · ui/ep-r8 firmware · ui/er-4 firmware · ui/er-6p firmware · ui/er-12 firmware · ui/er-8-xg firmware
- Source
- cve@mitre.org
References
- https://community.ui.com/releases/New-EdgeRouter-firmware-2-0-3-has-been-released-2-0-3/e8badd28-a112-4269-9fb6-ffe3fc0e1643Patch, Vendor Advisory
- https://hackerone.com/reports/406614Exploit, Issue Tracking, Third Party Advisory
- https://mjlanders.com/2019/07/28/resource-consumption-dos-on-edgemax-v1-10-6/Exploit, Third Party Advisory
- https://community.ui.com/releases/New-EdgeRouter-firmware-2-0-3-has-been-released-2-0-3/e8badd28-a112-4269-9fb6-ffe3fc0e1643Patch, Vendor Advisory
- https://hackerone.com/reports/406614Exploit, Issue Tracking, Third Party Advisory
- https://mjlanders.com/2019/07/28/resource-consumption-dos-on-edgemax-v1-10-6/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.