CVE-2019-1839
Description
A vulnerability in Cisco Remote PHY Device Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability occurs because the affected software improperly sanitizes user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying various CLI commands with crafted arguments. A successful exploit could allow the attacker to run arbitrary commands as the root user, allowing complete compromise of the system.
How to fix
- cisco remote_phy_120_firmware6.4 or later
- cisco remote_phy_220_firmware3.1 or later
- cisco remote_phy_shelf_7200_firmware1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco remote_phy_120_firmware | v < 6.4 | 6.4 |
| cisco remote_phy_220_firmware | v < 3.1 | 3.1 |
| cisco remote_phy_shelf_7200_firmware | v < 1.2 | 1.2 |
| cisco cbr-8_firmware | 1.1, 6.1, 6.2 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.