CVE-2018-15728: couchbase couchbase_server Code Injection

Vulnerability summary

CVE-2018-15728 is a high (CVSS 9.0) Code Injection vulnerability in couchbase couchbase_server. EPSS estimates a 2.92% chance of exploitation in the next 30 days, higher than 86.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 24-08-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

Couchbase Server exposed the '/diag/eval' endpoint which by default is available on TCP/8091 and/or TCP/18091. Authenticated users that have 'Full Admin' role assigned could send arbitrary Erlang code to the 'diag/eval' endpoint of the API and the code would subsequently be executed in the underlying operating system with privileges of the user which was used to start Couchbase. Affects Version: 4.0.0, 4.1.2, 4.5.1, 5.0.0, 4.6.5, 5.0.1, 5.1.1, 5.5.0, 5.5.1. Fix Version: 6.0.0, 5.5.2

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.