CVE-2019-9843 Improper Restriction of XML External Entity Reference in DiffPlug Spotless
An attacker can disclose file contents to a MITM attacker if a victim processes an untrusted XML file using the Spotless library.
- 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-2019-9843?
CVE-2019-9843 is a high-severity vulnerability in n/a, published on 15 Mar 2019. 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
In DiffPlug Spotless before 1.20.0 (library and Maven plugin) and before 3.20.0 (Gradle plugin), the XML parser would resolve external entities over both HTTP and HTTPS and didn't respect the resolveExternalEntities setting. For example, this allows disclosure of file contents to a MITM attacker if a victim performs a spotlessApply operation on an untrusted XML file.
Weakness: CWE-611
Which versions are affected by CVE-2019-9843?
4 open source packages ship an affected version, including com.diffplug.spotless:spotless-maven-plugin and com.diffplug.spotless:spotless-plugin-gradle. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
com.diffplug.spotless:spotless-maven-plugin Maven | All versions | 1.20.0 |
com.diffplug.spotless:spotless-maven-plugin Maven | All versions | 1.20.0 |
com.diffplug.spotless:spotless-plugin-gradle Maven | All versions | 3.20.0 |
com.diffplug.spotless:spotless-plugin-gradle Maven | All versions | 3.20.0 |
Products include Diffplug Gradle, Diffplug Maven.
How do I fix CVE-2019-9843?
Upgrade com.diffplug.spotless:spotless-maven-plugin to 1.20.0 or later.
Is CVE-2019-9843 being exploited?
There is no known exploitation of CVE-2019-9843 in the wild and no public exploit code.
Sources
Also known as GHSA-7v35-qwwj-p98g.