CVE-2021-28918
Critical
Description
Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.
SeverityCritical
CVSS9.1
Exploit probability—
ProductNetmask
PublishedApr 1, 2021
First seenApr 1, 2021
How to fix
Update
- netmask1.1.0, 2.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netmask_project netmask | v ≤ 1.0.6 | — |
| netmasknpm | v < 1.1.0, v < 2.0.1 | 1.1.0, 2.0.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.