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.
Published 2018-09-21 13:29:01
Updated 2020-10-22 13:15:15
View at NVD,   CVE.org
Vulnerability category: Information leak

Exploit prediction scoring system (EPSS) score for CVE-2018-8023

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-8023

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST
5.9
MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
2.2
3.6
NIST

CWE ids for CVE-2018-8023

References for CVE-2018-8023

Products affected by CVE-2018-8023

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