CVE-2021-27420
Medium
Description
GE UR firmware versions prior to version 8.1x web server task does not properly handle receipt of unsupported HTTP verbs, resulting in the web server becoming temporarily unresponsive after receiving a series of unsupported HTTP requests. When unresponsive, the web server is inaccessible. By itself, this is not particularly significant as the relay remains effective in all other functionality and communication channels.
SeverityMedium
CVSS5.3
Exploit probability—
ProductGe Multilin B30 Firmware
PublishedMar 23, 2022
First seenMar 23, 2022
Weakness typeCWE-20Improper input validation
How to fix
Update
- ge multilin_b30_firmware8.10 or later
- ge multilin_b90_firmware8.10 or later
- ge multilin_c60_firmware8.10 or later
- ge multilin_c70_firmware8.10 or later
- ge multilin_c95_firmware8.10 or later
- ge multilin_d30_firmware8.10 or later
- ge multilin_d60_firmware8.10 or later
- ge multilin_f35_firmware8.10 or later
- ge multilin_f60_firmware8.10 or later
- ge multilin_g30_firmware8.10 or later
- ge multilin_g60_firmware8.10 or later
- ge multilin_l30_firmware8.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ge multilin_b30_firmware | v < 8.10 | 8.10 |
| ge multilin_b90_firmware | v < 8.10 | 8.10 |
| ge multilin_c60_firmware | v < 8.10 | 8.10 |
| ge multilin_c70_firmware | v < 8.10 | 8.10 |
| ge multilin_c95_firmware | v < 8.10 | 8.10 |
| ge multilin_d30_firmware | v < 8.10 | 8.10 |
| ge multilin_d60_firmware | v < 8.10 | 8.10 |
| ge multilin_f35_firmware | v < 8.10 | 8.10 |
| ge multilin_f60_firmware | v < 8.10 | 8.10 |
| ge multilin_g30_firmware | v < 8.10 | 8.10 |
| ge multilin_g60_firmware | v < 8.10 | 8.10 |
| ge multilin_l30_firmware | v < 8.10 | 8.10 |
| ge multilin_l60_firmware | v < 8.10 | 8.10 |
| ge multilin_l90_firmware | v < 8.10 | 8.10 |
| ge multilin_m60_firmware | v < 8.10 | 8.10 |
| ge multilin_n60_firmware | v < 8.10 | 8.10 |
| ge multilin_t35_firmware | v < 8.10 | 8.10 |
| ge multilin_t60_firmware | v < 8.10 | 8.10 |
| ge multilin_c30_firmware | v < 8.10 | 8.10 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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