CVE-2018-8023
Medium
Description
Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Apache Mesos
PublishedSep 21, 2018
First seenSep 21, 2018
How to fix
Update
- apache mesos1.4.2 or later
- org.apache.mesos:mesos1.4.2, 1.5.2, 1.6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache mesos | v < 1.4.2, 1.5.0, 1.5.1, 1.6.0 | 1.4.2 |
| org.apache.mesos:mesosMaven | v < 1.4.2, 1.5.0 ≤ v < 1.5.2, 1.6.0 ≤ v < 1.6.1 | 1.4.2, 1.5.2, 1.6.1 |
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