Title: Micro Focus Cobol Arbitrary Command Execution Vulnerability
Severity: MODERATE
Description:
Micro Focus Cobol is a development suite for unix platforms offered by Merant. The Micro Focus Cobol application server is offered on a per-user license basis.
When installing Micro Focus Cobol, the 'Apptrack' feature can be enabled to assist in tracking the licenses. If this is done, a shell-script called 'nolicense' is installed by default.
The 'nolicense' script is run whenever the application server licenses are all in use. It is executed with root privileges.
This shell-script is installed in a directory set mode 777 and the file itself is mode 666. It can thus be overwritten or modified by regular users.
An attacker may be able to execute arbitrary commands as root by modifying the script. Any injected shell commands could be executed.
It should be noted that the attacker must use up all application server licenses before this script is executed. In environments where such software is in regular use, this may not be difficult to accomplish.
Affected Products:
- Micro Focus Cobol 4.1.0
References:
- Merant: Micro Focus Product Homepage
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