CVE-2019-0195
Deserialization of Untrusted Data in Apache Tapestry
9.8
CRITICAL
CVSS 3.1
EPSS 15.5%
Description
By manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.
How to fix CVE-2019-0195
To remediate CVE-2019-0195, upgrade the affected package to a fixed version below.
- —upgrade to 5.4.5 or later
Is CVE-2019-0195 being exploited?
Moderate — EPSS is 15.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- >= 5.4.0, < 5.4.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |