CVE-2020-7653 Arbitrary File Read in Snyk Broker
An attacker with internal network access can read arbitrary files by creating symlinks to match whitelisted paths in Snyk Broker.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-7653?
CVE-2020-7653 is a medium-severity path traversal vulnerability in snyk-broker, published on 29 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
All versions of snyk-broker before 4.80.0 are vulnerable to Arbitrary File Read. It allows arbitrary file reads for users with access to Snyk's internal network by creating symlinks to match whitelisted paths.
Weakness: CWE-59
Which versions are affected by CVE-2020-7653?
2 open source packages ship an affected version, including snyk-broker. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
snyk-broker npm | All versions | 4.80.0 |
snyk-broker npm | All versions | 4.80.0 |
Products include Synk Broker.
How do I fix CVE-2020-7653?
Upgrade snyk-broker to 4.80.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-7653 being exploited?
There is no known exploitation of CVE-2020-7653 in the wild and no public exploit code.
Other vulnerabilities in snyk-broker
Sources
Also known as GHSA-4vj3-f849-5r48, SNYK-JS-SNYKBROKER-570612.