CVE-2019-10071 Timing attack on HMAC signature comparison in Apache Tapestry

What is CVE-2019-10071?

CVE-2019-10071 is a critical 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

The code which checks HMAC in form submissions used String.equals() for comparisons, which results in a timing side channel for the comparison of the HMAC signatures. This could lead to remote code execution if an attacker is able to determine the correct signature for their payload. The comparison should be done with a constant time algorithm instead.

Weakness: CWE-203

Which versions are affected by CVE-2019-10071?

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-2019-10071?

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

Is CVE-2019-10071 being exploited?

There is no known exploitation of CVE-2019-10071 in the wild and no public exploit code.

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-2014-1972 Apache Tapestry Unsafe Object Storage High 7.8

Sources

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

Also known as GHSA-fgmr-vx7c-5wj6.