CWE-243 — Creation of chroot Jail Without Changing Working Directory
CWE-243: Creation of chroot Jail Without Changing Working Directory
MITRE CWE weakness
| Kind | Weakness |
| Abstraction | Variant |
| Status | Draft |
| Likelihood of exploit | High |
Description
The product uses the chroot() system call to create a jail, but does not change the working directory afterward. This does not prevent access to files outside of the jail.
Improper use of chroot() may allow attackers to escape from the chroot jail. The chroot() function call does not change the process's current working directory, so relative paths may still refer to file system resources outside of the chroot jail after chroot() has been called.
Common consequences
- Confidentiality: Read Files or Directories
Mitigations
(none listed)
References
- CWE page: https://cwe.mitre.org/data/definitions/243.html
- CWE list: https://cwe.mitre.org/data/index.html