CVE-2018-7408 Incorrect Permission Assignment for Critical Resource in NPM
Local attackers can escalate privileges by exploiting incorrect directory ownership changes in the npm package manager during installation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-7408?
CVE-2018-7408 is a high-severity vulnerability in n/a, published on 22 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.
Weakness: CWE-732
Which versions are affected by CVE-2018-7408?
2 open source packages ship an affected version, including npm. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
npm npm | All versions | 5.7.1 |
npm npm | All versions | 5.7.1 |
Products include Npmjs Npm.
How do I fix CVE-2018-7408?
Upgrade npm to 5.7.1 or later.
Is CVE-2018-7408 being exploited?
There is no known exploitation of CVE-2018-7408 in the wild and no public exploit code.
Sources
Also known as GHSA-ph34-pc88-72gc, MINI-62r5-j4c8-ghmg.