Vulnerabilities > CVE-2023-28630 - Information Exposure Through Log Files vulnerability in Thoughtworks Gocd
Summary
GoCD is an open source continuous delivery server. In GoCD versions from 20.5.0 and below 23.1.0, if the server environment is not correctly configured by administrators to provide access to the relevant PostgreSQL or MySQL backup tools, the credentials for database access may be unintentionally leaked to admin alerts on the GoCD user interface. The vulnerability is triggered only if the GoCD server host is misconfigured to have backups enabled, but does not have access to the `pg_dump` or `mysqldump` utility tools to backup the configured database type (PostgreSQL or MySQL respectively). In such cases, failure to launch the expected backup utility reports the shell environment used to attempt to launch in the server admin alert, which includes the plaintext database password supplied to the configured tool. This vulnerability does not affect backups of the default on-disk H2 database that GoCD is configured to use. This issue has been addressed and fixed in GoCD 23.1.0. Users are advised to upgrade. Users unable to upgrade may disable backups, or administrators should ensure that the required `pg_dump` (PostgreSQL) or `mysqldump` (MySQL) binaries are available on the GoCD server when backups are triggered.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Fuzzing and observing application log data/errors for application mapping An attacker sends random, malformed, or otherwise unexpected messages to a target application and observes the application's log or error messages returned. Fuzzing techniques involve sending random or malformed messages to a target and monitoring the target's response. The attacker does not initially know how a target will respond to individual messages but by attempting a large number of message variants they may find a variant that trigger's desired behavior. In this attack, the purpose of the fuzzing is to observe the application's log and error messages, although fuzzing a target can also sometimes cause the target to enter an unstable state, causing a crash. By observing logs and error messages, the attacker can learn details about the configuration of the target application and might be able to cause the target to disclose sensitive information.