CVE-2019-0207 Path traversal attack on Windows platforms

What is CVE-2019-0207?

CVE-2019-0207 is a high-severity path traversal vulnerability in Apache Tapestry, published on 16 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tapestry processes assets `/assets/ctx` using classes chain `StaticFilesFilter -> AssetDispatcher -> ContextResource`, which doesn't filter the character `\`, so attacker can perform a path traversal attack to read any files on Windows platform.

Weakness: CWE-22

Which versions are affected by CVE-2019-0207?

2 open source packages ship an affected version, including org.apache.tapestry:tapestry-core. It affects 1 product.

Products include Apache Tapestry.

How do I fix CVE-2019-0207?

Upgrade org.apache.tapestry:tapestry-core to 5.4.5 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-0207 being exploited?

There is no known exploitation of CVE-2019-0207 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Apache Tapestry

• CVE-2022-46366 Apache Tapestry prior to version 4 (EOL) allows RCE though deserialization of untrusted input Critical 9.8
• CVE-2021-27850 Bypass of the fix for CVE-2019-0195 Critical 9.8
• CVE-2020-17531 Deserialization flaw in EOL Tapestry 4. Critical 9.8
• CVE-2019-0195 Deserialization of Untrusted Data in Apache Tapestry Critical 9.8
• CVE-2019-10071 Timing attack on HMAC signature comparison in Apache Tapestry Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-89r3-rcpj-h7w6.