CVE-2019-10071 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://lists.apache.org/thread.html/6e8f42c88da7be3c60aafe3f6a85eb00b4f8b444de26b38d36233a43@3Cusers.tapestry.apache.org3E https://lists.apache.org/thread.html/7a437dad5af7309aba4d01bfc2463b3ac34e6aafaa565381d3a36460@3Cusers.tapestry.apache.org3E https://lists.apache.org/thread.html/bac8d6f9e1b4059b319d9cba6f33219a99b81623476ec896138f851c@3Cusers.tapestry.apache.org3E https://lists.apache.org/thread.html/r7d9c54beb1dc97dcccc58d9b5d31f0f7166f9a25ad1beba5f8091e0c@3Ccommits.tapestry.apache.org3E https://lists.apache.org/thread.html/r87523dd07886223aa086edc25fe9b8ddb9c1090f7db25b068dc30843@3Ccommits.tapestry.apache.org3E [tapestry-commits] 20200111 svn commit: r1055136 [2/2]

in /websites/production/tapestry/content: cache/main.pageCache component-rendering.html content-type-and-markup.html dom.html https.html request-processing.html response-compression.html security.html url-rewriting.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8