CVE-2016-9177 Spark allows remote attackers to read arbitrary files via a .. (dot dot) in the URI
Remote attackers can read arbitrary files via directory traversal in Spark, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-9177?
CVE-2016-9177 is a high-severity path traversal vulnerability in n/a, published on 4 Nov 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
Weakness: CWE-22
Which versions are affected by CVE-2016-9177?
2 open source packages ship an affected version, including com.sparkjava:spark-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.sparkjava:spark-core Maven | All versions | 2.5.2 |
com.sparkjava:spark-core Maven | All versions | 2.5.2 |
Products include Sparkjava Spark.
How do I fix CVE-2016-9177?
Upgrade com.sparkjava:spark-core to 2.5.2 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2016-9177 being exploited?
There is no known exploitation of CVE-2016-9177 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-89gc-6cw6-4vch.