CVE-2018-1103 Openshift Enterprise source-to-image vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip)
An attacker can trick a user into copying files from a pod to override files outside the target directory via improper input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-1103?
CVE-2018-1103 is a medium-severity path traversal vulnerability in Openshift Enterprise unsanitized paths in tar.go, published on 12 Jun 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Openshift Enterprise source-to-image before version 1.1.10 is vulnerable to an improper validation of user input. An attacker who could trick a user into using the command to copy files locally, from a pod, could override files outside of the target directory of the command.
Which versions are affected by CVE-2018-1103?
3 open source packages ship an affected version, including github.com/openshift/source-to-image. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/openshift/source-to-image Go | All versions | 1.1.10-0.20180427153919-f5cbcbc5cc6f |
github.com/openshift/source-to-image Go | All versions | 1.1.10-0.20180427153919-f5cbcbc5cc6f |
github.com/openshift/source-to-image Go | All versions | 1.1.10-0.20180427153919-f5cbcbc5cc6f |
Products include Redhat Source-to-Image.
How do I fix CVE-2018-1103?
Upgrade github.com/openshift/source-to-image to 1.1.10-0.20180427153919-f5cbcbc5cc6f or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-1103 being exploited?
There is no known exploitation of CVE-2018-1103 in the wild and no public exploit code.
Sources
Also known as GHSA-w55j-f7vx-6q37, GO-2020-0026.