IBM UrbanCode Deploy (UCD) 7.0 through 7.0.5.20, 7.1 through 7.1.2.16, 7.2 through 7.2.3.9, 7.3 through 7.3.2.4 and IBM DevOps Deploy 8.0 through 8.0.0.1 could be vulnerable to incomplete revocation of permissions when deleting a custom security resource type. When deleting a custom security type, associated permissions of objects using that type may not be fully revoked. This could lead to incorrect reporting of permission configuration and unexpected privileges being retained. IBM X-Force ID: 279974.
Weakness
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Potential Mitigations
- Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
- OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
References